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Integration of X-ray Absorption Fine Structure Databases for Data-Driven Materials Science
Description/Abstract:
With the aim of introducing data-driven science and establishing an infrastructure for making XAFS spectra findable and reusable, we have...
Keyword:
DOI
,
RDF
,
X-ray absorption fine structure
,
data integration
,
materials data repository
, and
metadata
Resource Type:
Article
Author:
Masashi Ishii
Journal:
Science and Technology of Advanced Materials: Methods
Date Uploaded:
08/06/2023
Date Modified:
12/06/2023
Calculations of Electron Inelastic Mean Free Paths for 31 Materials
Description/Abstract:
We present new calculations of electron inelastic mean free paths (IMFPs) for 200-2000 eV electrons in 27 elements (C, Mg, Al, Si, Ti, V,...
Keyword:
Bethe equation
,
IMFP
,
TPP
,
elemental solids
, and
inelastic mean free path
Resource Type:
Article
Author:
Tanuma, S.
,
Powell, C. J.
, and
Penn, D. R.
Journal:
Surface and Interface Analysis
Date Uploaded:
05/06/2023
Date Modified:
09/06/2023
利用性の高い材料データベース構築の仕方
Description/Abstract:
NIMS 無機材料データベースAtomWork-Advを一例として,材料定義と識別の視点から付加価値と利用性の高いデータ収集とデータベース構築の仕方について解説する。
Keyword:
材料データベース、利用性
Resource Type:
Article
Author:
徐 一斌
Journal:
研究開発リーダー
Date Uploaded:
30/05/2023
Calculations of electron inelastic mean free paths.VIII. Data for 15 elemental solids over the 50-2000 eV range
Description/Abstract:
We report calculations of electron inelastic mean free paths (IMFPs) for 50 eV to 2000 eV electrons in 14 elemental solids (Li, Be, diamo...
Keyword:
IMFP
,
Li, Be, diamond, graphite, Na, K, Sc, Ge, In, Sn, Cs, Gd, Tb, Dy, Al
,
TPP-2M equation
,
electron inelastic mean free path
, and
rare-earth elements
Resource Type:
Article
Author:
TANUMA, Shigeo
,
C.J. Powell
, and
D.R. Penn
Journal:
SURFACE AND INTERFACE ANALYSIS
Date Uploaded:
29/05/2023
Date Modified:
30/05/2023
Calculations of Electron Inelastic Mean Free Paths (IMFPs). XIV. Calculated IMFPs for LiF and Si3N4 and Development of an Improved Predictive IMFP Formula
Description/Abstract:
We report inelastic mean free paths (IMFPs) of Si3N4 and LiF for electron energies from 50 eV to 200 keV that were calculated from their ...
Keyword:
IMFP
,
Improved Predictive IMFP Formula
,
JTP equation
,
TPP-2M
, and
electron inelastic mean free path
Resource Type:
Article
Author:
Jablonski, Aleksander
,
Tanuma, Shigeo
, and
Powell, C. Cedric
Journal:
Surface and Interface Analysis
Date Uploaded:
29/05/2023
Date Modified:
06/06/2023
Calculations of electron inelastic mean free paths. V. Data for 14 organic compounds over the 50–2000 eV range
Description/Abstract:
We report calculations of electron inelastic mean free paths (IMFPs) of 50–2000 eV electrons for a group of 14 organic compounds: 26-n-pa...
Keyword:
IMFP
,
IMFP predictive formula
,
Penn algorithm
,
TPP-2M
,
electron inelastic mean free path
, and
organic compounds
Resource Type:
Article
Author:
Shigeo Tanuma
Journal:
Surface and Interface Analysis
Date Uploaded:
29/05/2023
Date Modified:
30/05/2023
Energy Dependence of Electron Stopping Powers in Elemental Solids over the 100 eV to 30 keV Energy Range
Description/Abstract:
We analyzed the energy dependence of electron stopping powers (SPs) calculated for 41 elemental solids from experimental optical data for...
Keyword:
Electron stopping power
,
Elemental solids
,
Energy dependence
, and
Fano plo
Resource Type:
Article
Author:
KUMAGAI, kazuhiro
,
TANUMA, Shigeo
, and
C.J. Powell
Journal:
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Date Uploaded:
29/05/2023
Nd-Fe-B磁石用プロトタイプ熱力学データベースの構築
Description/Abstract:
For the Nd-Fe-B permanent magnets, a prototype thermodynamic database of the 8-element system (Nd, Fe, B, Al, Co, Cu, Dy, Ga) was constru...
Keyword:
CALPHAD
,
permanent magnet
, and
phase equilibria
Resource Type:
Article
Author:
阿部 太一
,
森下 政夫
,
CHEN Ying
,
SAENGDEEJING Arkapol
,
橋本 清
,
小林 能直
,
大沼 郁雄
,
小山 敏幸
, and
広沢 哲
Journal:
Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Date Uploaded:
29/05/2023
Calculations of electron stopping powers for 41 elemental solids over the 50 eV to 30 keV range with the full Penn algorithm
Description/Abstract:
We present mass collision electron stopping powers (SPs) for 41 elemental solids (Li, Be, graphite, diamond, glassy C, Na, Mg, Al, Si, K,...
Keyword:
full Penn algorithm
,
41 elemental solids
,
Electron stopping power
, and
energy-loss functions
Resource Type:
Article
Author:
H. Shinotsuka
,
S. Tanuma
,
C.J. Powell
, and
D.R. Penn
Journal:
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Date Uploaded:
25/05/2023
表面分析における電子の非弾性散乱
Description/Abstract:
This paper describes the recent progress in electron inelastic mean free paths (IMFPs) calculations with the dielectric response function...
Keyword:
IMFP
,
dielectric function model
,
electron inelastic mean free path
,
energy loss function
, and
modified Bethe equation
Resource Type:
Article
Author:
田沼繁夫
Journal:
Vacuum and Surface Science
Date Uploaded:
13/05/2023
Electron Inelastic Scattering in Surface Analysis
Description/Abstract:
This paper discusses the recent progress in electron inelastic mean free paths (IMFPs) calculations with the dielectric response function...
Keyword:
IMFP
,
dielectric function model
,
energy loss function
,
inelastic mean free path
, and
modified Bethe equation
Resource Type:
Article
Author:
Shigeo Tanuma
Journal:
e-Journal of Surface Science and Nanotechnology
Date Uploaded:
13/05/2023
Current Status and Future Scope of Phase Diagram Studies
Description/Abstract:
Starting in the middle of the 19th century, research on alloy phase diagrams progressed into the labor and time-consuming process of cons...
Keyword:
CALPHAD
,
Phase diagrams
, and
Phase equilibria
Resource Type:
Article
Author:
Masanori Enoki
,
Satoshi Minamoto
,
Ikuo Ohnuma
,
Taichi Abe
, and
Hiroshi Ohtani
Journal:
ISIJ International
Date Uploaded:
12/05/2023
Irradiation Temperature Dependence of Shape Elongation of Metal Nanoparticles in Silica: Counterevidence to Ion Hammering Related Scenario
Description/Abstract:
Irradiation temperature (IT) dependence of the elongation efficiency of vanadium nanoparticles (NPs) in SiO2 was evaluated: The samples ...
Keyword:
ion shaping
,
irradiation temperature dependence
,
metal nanoparticle
,
optical linear dichroism spectroscopy
,
shape elongation
,
silica glass
, and
swift heavy ion
Resource Type:
Article
Author:
Hiroshi Amekura
,
Saif Ahmad Khan
,
Pawan Kumar Kulriya
, and
Debdulal Kabiraj
Journal:
Quantum Beam Science
Date Uploaded:
11/05/2023
計算熱力学と組織形成シミュレーションに基づくNd-Fe-B系磁石における粒界相の役割解明
Description/Abstract:
ネオジム磁石の保磁力を効率的に制御するには、構成相尾の熱安定性と熱プロセス中に観察される内部組織変化を理解する必要がある。本研究では、粒界相の熱力学的な特徴と磁石の組織形成を解析した。
Keyword:
Permanent magnets
,
Phase equilibria
, and
Phase field simulations
Resource Type:
Article
Author:
小山 敏幸
,
塚田 祐貴
, and
阿部 太一
Journal:
粉体および粉末冶金
Date Uploaded:
11/05/2023
Enormous CO2 Sorption Capacity of PDMS Rubbers near Condensation Pressure and at Low Temperatures
Description/Abstract:
We report for the first time that PDMS rubber sorbs an extremely large amount of CO2 (792 mg g−1) at near the condensation pressure at a ...
Keyword:
CO2 recovery
,
Flory-Huggins theory
,
PDMS
,
carbon dioxide
,
gas adsorption
,
gas separation
, and
sorption enthalpy
Resource Type:
Article
Author:
Mizuki Inoue
,
Edhuan Ismail
,
Sadaki Samitsu
,
Hirofumi Kanoh
, and
Izumi Ichinose
Journal:
CHEMISTRY LETTERS
Date Uploaded:
11/05/2023
Stabilization of Equiatomic Solutions Due to High-Entropy Effect
Description/Abstract:
The stability of solid-solution phases in FCC and BCC lattices was examined in multi-component alloys based on the CALPHAD technique usin...
Keyword:
CALPHAD
,
High-entropy alloy
, and
High-entropy effect
Resource Type:
Article
Author:
Taichi Abe
,
Kwangsik Han
,
Yumi Goto
,
Ikuo Ohnuma
, and
Toshiyuki Koyama
Journal:
MATERIALS TRANSACTIONS
Date Uploaded:
11/05/2023
Understanding magnetocrystalline anisotropy based on orbital and quadrupole moments
Description/Abstract:
Understanding magnetocrystalline anisotropy (MCA) is fundamentally important for developing novel magnetic materials. Therefore, clarifyi...
Keyword:
magnetocrystalline anisotropy, orbital moment, quadrupole moment, first-principles calculation, spintronics, interface
Resource Type:
Article
Author:
Yoshio Miura
and
Jun Okabayashi
Journal:
Journal of Physics: Condensed Matter
Date Uploaded:
10/05/2023
Mechanism of ion track formation in silicon by much lower energy deposition than the formation threshold
Description/Abstract:
The mechanism of the track formation in crystalline silicon (c-Si) under C60 ion irradiation with the medium energies of 1-9 MeV is discu...
Keyword:
C60 ion
,
ion track
,
silicon
,
swift heavy ion
,
synergy effect
, and
track recrystallization
Resource Type:
Article
Author:
H Amekura
,
K Narumi
,
A Chiba
,
Y Hirano
,
K Yamada
,
S Yamamoto
,
N Ishikawa
,
N Okubo
,
M Toulemonde
, and
Y Saitoh
Journal:
PHYSICA SCRIPTA
Date Uploaded:
10/05/2023
Hidden chemical order in disordered Ba7Nb4MoO20 revealed by resonant X-ray diffraction and solid-state NMR
Description/Abstract:
Herein, we quantitatively determined the Mo/Nb order in the high ion conductor Ba7Nb4MoO20 by a novel technique combining of resonant X-r...
Resource Type:
Article
Author:
Yuta Yasui
,
Masataka Tansho
,
Kotaro Fujii
,
Yuichi Sakuda
,
Atsushi Goto
,
Shinobu Ohki
,
Yuuki Mogami
,
Takahiro Iijima
,
Shintaro Kobayashi
,
Shogo Kawaguchi
,
Keiichi Osaka
,
Kazutaka Ikeda
,
Toshiya Otomo
, and
Masatomo Yashima
Journal:
Nature Communications
Date Uploaded:
10/05/2023
インフラ維持管理のための構造材料技術の開発
Description/Abstract:
NIMSは,第1期SIP「インフラ維持管理・更新・マネジメント技術」に参画し,腐食促進試験法,腐食モニタリング,耐食鉄筋の新材料,高分子系・セメント系補修材料等を開発した.また,コンクリート内部の塩分,pH,酸素濃度,腐食抵抗を同時に長期モニタリングできる「コンクリート内部...
Keyword:
NDE
,
corrosion
, and
infrastructures
Resource Type:
Article
Author:
土谷 浩一
Journal:
AI・データサイエンス論文集
Date Uploaded:
09/05/2023
Solvent Effects during the Flash-Freezing Fabrication of Mesoporous Polystyrenes
Description/Abstract:
A polymer solution can be flash-frozen to prepare homopolymers with mesoporous structures in a template-free manner. The flash-freezing m...
Keyword:
ice templating
,
nanocrystal
, and
nanoporous polymers
Resource Type:
Article
Author:
Sadaki Samitsu
,
Sirawit Pruksawan
,
Hideaki Yokoyama
, and
Izumi Ichinose
Journal:
Macromolecules
Date Uploaded:
09/05/2023
Date Modified:
10/05/2023
Squeezing Visible Light waves into a 3-nm-thick and 55-nm-long Plasmon Cavity
Description/Abstract:
We demonstrate controlled squeezing of visible light waves into nanometer-sized optical cavities. The light is perpendicularly confined i...
Keyword:
plasmon cavities
,
plasmon resonance
,
plasmonics
,
プラズモニクス
,
プラズモン共振器
, and
プラズモン共鳴
Resource Type:
Article
Author:
Hideki T. Miyazaki
and
Yoichi Kurokawa
Date Uploaded:
28/04/2023
Characterization and properties of green-emitting beta-SiAlON : Eu2+ powder phosphors for white light-emitting diodes
Description/Abstract:
This letter reports a b-SiAlON:Eu2+ green phosphor with the composition of Eu0.00296Si0.41395Al0.01334O0.0044N0.56528. The phosphor powde...
Keyword:
LEDs
,
luminescence
,
oxynitride
, and
phosphor
Resource Type:
Article
Author:
Naoto Hirosaki
,
Rong-Jun Xie
,
Koji Kimoto
,
Takashi Sekiguchi
,
Yoshinobu Yamamoto
,
Takayuki Suehiro
, and
Mamoru Mitomo
Date Uploaded:
28/04/2023
有機半導体材料における光電子収量分光(PYS)データベース構築
Description/Abstract:
有機・無機半導体材料のイオン化ポテンシャルの情報を与える光電子収量分光(PYS)のデジタルデータ ベース構築を行った.検索する際のキー(メタデータ)である,(1)計測機から得られる計測メタデータ,(2)データ解析メタデータ,(3)測定試料や実験手順などを記載した試料・実験...
Keyword:
database
and
photoemission yield spectroscopy (PYS)
Resource Type:
Article
Author:
柳生 進二郎
,
吉武 道子
,
長田 貴弘
,
安田 剛
,
桑島 功
,
劉雨彬
, and
中島嘉之
Date Uploaded:
28/04/2023
Scheme for Achieving a Topological Photonic Crystal by Using Dielectric Material
Description/Abstract:
We derive in the present work topological photonic states purely based on conventional dielectric material by deforming a honeycomb latti...
Keyword:
quantum spin Hall effect
,
semiconductor photonic crystal
, and
topological insulator
Resource Type:
Article
Author:
Long-Hua Wu
and
Xiao Hu
Journal:
Physical Review Letters
Date Uploaded:
28/04/2023
Date Modified:
28/04/2023
Topological Node-Line Semimetal and Dirac Semimetal State in Antiperovskite Cu 3 PdN
Description/Abstract:
Based on first-principles calculation and effective model analysis, we propose that the cubic antiperovskite material Cu3PdN can host a t...
Keyword:
Dirac semimetal
,
antiperovskite
,
nodal line
, and
topological phase
Resource Type:
Article
Author:
Rui Yu
,
Hongming Weng
,
Zhong Fang
,
Xi Dai
, and
Xiao Hu
Journal:
Physical Review Letters
Date Uploaded:
28/04/2023
Date Modified:
28/04/2023
A Comprehensive Review of Semiconductor Ultraviolet Photodetectors: From Thin Film to One-Dimensional Nanostructures
Description/Abstract:
Ultraviolet (UV) photodetectors have drawn extensive attention owing to their applications in industrial, environmental and even biologic...
Keyword:
one-dimensional nanostructures
,
semiconductor
,
thin film
, and
ultraviolet photodetector
Resource Type:
Article
Author:
Liwen Sang
,
Meiyong Liao
, and
Masatomo Sumiya
Date Uploaded:
28/04/2023
Neuromorphic learning, working memory, and metaplasticity in nanowire networks
Description/Abstract:
Nanowire networks (NWNs) mimic the brain’s neurosynaptic connectivity and emergent dynamics. Consequently, NWNs may also emulate the syna...
Keyword:
Neuromorphic
,
Silver nanowire network
,
emergent dynamics
,
learning
,
memory
,
metaplasticity
, and
neurosynaptic connectivity
Resource Type:
Article
Author:
Alon Loeffler
,
Adrian Diaz-Alvarez
,
Ruomin Zhu
,
Natesh Ganesh
,
James M. Shine
,
Tomonobu Nakayama
, and
Zdenka Kuncic
Journal:
Science Advances
Date Uploaded:
28/04/2023
Date Modified:
28/04/2023
Challenges and Breakthroughs in Recent Research on Self-Assembly
Description/Abstract:
The controlled fabrication of nanometer-scale objects is without doubt one of the central issues in current science and technology. Howev...
Keyword:
bottom–up
,
interfaces
,
nanomaterials
,
self-assembly
, and
supermolecules
Resource Type:
Article
Author:
Katsuhiko Ariga
,
Jonathan P Hill
,
Michael V Lee
,
Ajayan Vinu
,
Richard Charvet
, and
Somobrata Acharya
Date Uploaded:
28/04/2023
Numerical atomic basis orbitals from H to Kr
Description/Abstract:
We present a systematic study for numerical atomic basis orbitals ranging from H to Kr, which could be used in large scale O(N) electroni...
Keyword:
DFT
,
LCAO
,
OpenMX
,
benchmark
,
bulks
,
first-principles calculation
,
molecules
, and
numerical atomic basis
Resource Type:
Article
Author:
T. Ozaki
and
H. Kino
Date Uploaded:
28/04/2023
選択的レーザ溶融法による金属材料造形中に発生する微小欠陥のAEモニタリング
Description/Abstract:
AE波形の連続計測と無線転送が行えるバッテリ駆動の独自開発装置「無線CWM」を用い,SLM造形装置のチャンバにケーブルを貫通させるような改造を加えない簡便な手法で,造形中の微小欠陥の発生をリアルタイムにモニタリングできることが示された.その結果,レーザ強度が高い条件ないし部...
Keyword:
3Dプリンタ
,
アコースティック・エミッション法
,
無線計測
, and
選択的レーザ溶融法
Resource Type:
Article
Author:
伊藤 海太
,
草野 正大
,
出村 雅彦
, and
渡邊 誠
Date Uploaded:
25/04/2023
Detection and location of microdefects during selective laser melting by wireless acoustic emission measurement
Description/Abstract:
Microdefects sometimes form in workpieces fabricated by selective laser melting (SLM). It is difficult to understand the mechanism of gen...
Keyword:
Acoustic emission
,
Crack detection
,
Real-time monitoring
,
Selective laser melting
, and
Wireless monitoring
Resource Type:
Article
Author:
ITO, Kaita
,
KUSANO, Masahiro
,
DEMURA, Masahiko
, and
WATANABE, Makoto
Date Uploaded:
25/04/2023
Metal doped polyaniline as neuromorphic circuit elements for in-materia computing
Description/Abstract:
Polyaniline-based atomic switches are material building blocks whose nanoscale structure and resultant neuromorphic character provide a n...
Keyword:
Computing
,
Memristor
,
Nanoarchitectonics
,
Neuromorphic
,
Polyanilline
, and
atomic switch
Resource Type:
Article
Author:
R. Higuchi
,
S. Liak
,
H. O. Sillin
,
T. Tsuruoka
,
M. Kunitake
,
T. Nakayama
,
J. K. Gimzewski
, and
A. Z. Stieg
Date Uploaded:
11/04/2023
Extended Mermin Method for Calculating the Electron Inelastic Mean Free Path
Description/Abstract:
We propose an improved method for calculating electron inelastic mean free paths (IMFPs) in solids from experimental energy-loss function...
Keyword:
Mermin method
and
inelastic mean free path
Resource Type:
Article
Author:
B. Da
,
H. Shinotsuka
,
H. Yoshikawa
,
Z. J. Ding
, and
S. Tanuma
Date Uploaded:
11/04/2023
Machine learning approach for the prediction of electron inelastic mean free paths
Description/Abstract:
The prediction of electron inelastic mean free paths (IMFPs) from simple material parameters is a challenging problem in studies using el...
Keyword:
inelastic mean free path
and
machine learning
Resource Type:
Article
Author:
Xun Liu
,
Lihao Yang
,
Zhufeng Hou
,
Bo Da
,
Kenji Nagata
,
Hideki Yoshikawa
,
Shigeo Tanuma
,
Yang Sun
, and
Zejun Ding
Date Uploaded:
11/04/2023
Evaluation of dielectric function models for calculation of electron inelastic mean free path
Description/Abstract:
This work investigates the detailed difference between dielectric function models, the Mermin model and the full Penn algorithm (FPA) mod...
Keyword:
Mermin model
,
electron inelastic mean free path
, and
plasmon lifetime
Resource Type:
Article
Author:
B. Da
,
X. Liu
,
L. H. Yang
,
J. M. Gong
,
Z. J. Ding
,
H. Shinotsuka
,
J. W. Liu
,
H. Yoshikawa
, and
S. Tanuma
Date Uploaded:
11/04/2023
Observation of Plasmon Energy Gain for Emitted Secondary Electron in Vacuo
Description/Abstract:
Plasmon gain by core-level electrons or elastic electrons observed in past studies seems to be of no practical value in material characte...
Keyword:
Plasmon Energy Gain
and
Secondary Electron
Resource Type:
Article
Author:
Bo Da
,
Jiangwei Liu
,
Yoshitomo Harada
,
Nguyen T. Cuong
,
Kazuhito Tsukagoshi
,
Jin Hu
,
Lihao Yang
,
Zejun Ding
,
Hideki Yoshikawa
, and
Shigeo Tanuma
Date Uploaded:
11/04/2023
Date Modified:
11/04/2023
界面熱抵抗の予測と利用
Description/Abstract:
界面熱抵抗は、ナノ構造材料システムの熱伝導特性に大きく影響を及ぼす可能性があるため、サーマルマネージメントには重要な要素である。本論文は、界面熱抵抗の影響要因を解析し、それを予測するための物理モデルと機械学習モデルについて説明する。さらに、熱抵抗の高い界面を利用し、極小熱伝...
Keyword:
断熱材料、界面、熱抵抗、機械学習
Resource Type:
Article
Author:
徐 一斌
Date Uploaded:
06/04/2023
Measurement of the Low-Energy Electron Inelastic Mean Free Path in Monolayer Graphene
Description/Abstract:
Measuring the electron-transport properties of substrate-supported nanomaterials with the traditional two-point comparison method is diff...
Keyword:
four-point probe technique
,
inelastic mean free path
, and
monolayer graphene
Resource Type:
Article
Author:
Bo Da
,
Yang Sun
,
Zhufeng Hou
,
Jiangwei Liu
,
Nguyen Thanh Cuong
,
Kazuhito Tsukagoshi
,
Hideki Yoshikawa
,
Shigeo Tanuma
,
Jin Hu
,
Zhaoshun Gao
, and
Zejun Ding
Date Uploaded:
04/04/2023
Date Modified:
05/04/2023
Impact of Telechelic Polymer Precursors on the Viscoelastic Properties of Vitrimers
Description/Abstract:
結合交代性を有する架橋高分子材料ビトリマーについて、合成原料として架橋反応点の位置が規定されたテレケリックポリマーを用いた場合、反応点が規定されていないランダムポリマーに対して大きく粘弾性特性が異なることを明らかにした。テレケリックポリマーから得られたビトリマーは昇温により...
Keyword:
Crosslink polymer
,
Dynamic covalent bond
,
Reversible-deactivation radical polymerization
,
Telechelic polymer
,
Viscoelasticity
, and
Vitrimer
Resource Type:
Article
Author:
Yasuyuki Nakamura
,
Mizuki Tenjimbayashi
,
Akinori Moriya
, and
Masanobu Naito
Date Uploaded:
30/03/2023
Date Modified:
03/04/2023
IMPROVED PROPERTIES OF SULFONATED OCTAPHENYL POLYHEDDRAL SILSEQUIOXANE CROSSLINK WITH HIGHLY SULFONATED POLYPHENYLSULFONE AS PROTON EXCHANGE MEMBRANE
Description/Abstract:
This study explored the concept of improving the properties of the crosslinked membrane using a 1.5 nm closed cage octaphenyl polyhedral ...
Keyword:
Cross-linking
,
Fuel cell
,
Proton exchange membrane
,
Sulfonated POSS
, and
Sulfonated PPSU
Resource Type:
Article
Author:
Nor Azureen Mohamad Nor
,
Juhana Jaafar
, and
Je-Deok Kim
Date Uploaded:
30/03/2023
Redox-Flow Battery Operating in Neutral and Acidic Environments with Multielectron-Transfer-Type Viologen Molecular Assembly
Description/Abstract:
Recently, redox flow batteries (RFBs) have attracted attention as a large-scale energy storage technology. To improve their energy densit...
Keyword:
aqueous solution
,
dendritic structure
,
molecular assembly
,
organic molecules
,
redox flow battery
, and
viologen
Resource Type:
Article
Author:
Akihiro Ohira
,
Takashi Funaki
,
Erika Ishida
,
Je-Deok Kim
, and
Yukari Sato
Date Uploaded:
30/03/2023
A novel imogolite-reinforced sulfonated polyphenylsulfone as proton exchange membrane in fuel cell applications
Description/Abstract:
The high ion exchange capacity of sulfonated polyphenylsulfone (SPPSU) consists of nanotubular inorganic clay that was developed as a pro...
Keyword:
Crosslinking
,
Highly sulfonated polyphenylsulfone
,
Imogolite
,
Inorganic clay
, and
Proton exchange membrane
Resource Type:
Article
Author:
Nor Azureen Mohamad Nor
,
Kenji Tamura
,
Juhana Jaafar
,
Je-Deok Kim
,
Ahmad Fauzi Ismail
,
Mohd Hafiz Dzarfan Othman
, and
Mukhlis A. Rahman
Date Uploaded:
30/03/2023
Crosslinked Sulfonated Polyphenylsulfone-Vinylon (CSPPSU-vinylon) Membranes for PEM Fuel Cells from SPPSU and Polyvinyl Alcohol (PVA)
Description/Abstract:
Acrosslinked sulfonated polyphenylsulfone (CSPPSU) polymer and polyvinyl alcohol (PVA) were thermally crosslinked; then, a CSPPSU-vinylon...
Keyword:
CSPPSU-vinylon
,
PEMFCs
,
PPSU
,
PVA
, and
SPPSU
Resource Type:
Article
Author:
Je-Deok Kim
,
Satoshi Matsushita
, and
Kenji Tamura
Date Uploaded:
29/03/2023
Ultrathin Electrolyte Membranes with PFSA-Vinylon Intermediate Layers for PEM Fuel Cells
Description/Abstract:
We prepared ultra-thin PFSA/PFSA-vinylon/PFSA laminated electrolyte membranes (thickness = 10 μm) for fuel cells without using a reinforc...
Keyword:
PFSA ionomers
,
PFSA-vinylon
,
THIN membrane
,
fuel cells
, and
lamination
Resource Type:
Article
Author:
Jedeok KIM
,
Kazuya Yamasaki
,
Hitoshi Ishimoto
, and
Yusuke Takata
Date Uploaded:
29/03/2023
Tuning Interfacial Thermal and Electrical Conductance across a Metal/MoS2 Monolayer through N‐Methyl‐2‐pyrrolidone Wet Cleaning
Description/Abstract:
Extensive effort has been dedicated to developing two-dimensional (2D) materials as an alternative to Si-based semiconductor technology. ...
Keyword:
electrical conductance, interfacial thermal resistances, molybdenum disulfide, monolayers, wet cleaning
Resource Type:
Article
Author:
Yen‐Ju Wu
,
Yann‐Wen Lan
,
Shih‐Chieh Hsu
,
Chen‐Hao Yeh
,
Yu‐Seng Ku
,
Jyh‐Chiang Jiang
, and
Yibin Xu
Date Uploaded:
22/03/2023
Predicting interfacial thermal resistance by machine learning
Description/Abstract:
Lots of factors affect the interfacial thermal resistance (ITR), making ITR prediction a high-dimensional mathematical problem. Machine l...
Keyword:
interfacial thermal resistance, machine learning, thermal management
Resource Type:
Article
Author:
Yen-Ju Wu
,
Lei Fang
, and
Yibin Xu
Date Uploaded:
21/03/2023
Study on thermoelectric property optimization of mixed-phase bismuth telluride thin films deposited by co-evaporation process
Description/Abstract:
The development of Bi2Te3 thin films has huge potential in the pursuit of efficient thermoelectric micro/nanodevices due to their high Se...
Keyword:
Bi2Te3, Thermoelectric properties, Co-evaporation, Thin films, Mixed phases
Resource Type:
Article
Author:
Yen-Ju Wu
,
Shih-Chieh Hsu
,
Ya-Cheng Lin
,
Yibin Xu
,
Tung-Han Chuang
, and
Sheng-Chi Chen
Date Uploaded:
21/03/2023
Physical and chemical descriptors for predicting interfacial thermal resistance
Description/Abstract:
Heat transfer at interfaces plays a critical role in material design and device performance. Higher interfacial thermal resistances (ITRs...
Keyword:
interfacial thermal resistance, machine learning, database, descriptor
Resource Type:
Article
Author:
Yen-Ju Wu
,
Tianzhuo Zhan
,
Zhufeng Hou
,
Lei Fang
, and
Yibin Xu
Date Uploaded:
21/03/2023
Essential structural and experimental descriptors for bulk and grain boundary conductivities of Li solid electrolytes
Description/Abstract:
We present a computational approach for identifying the important descriptors of the ionic conductivities of lithium solid electrolytes. ...
Keyword:
Ionic conductivity
,
machine learning
,
grain boundary
,
ionic conductor
,
Li battery
,
grain size
, and
descriptor
Resource Type:
Article
Author:
Yen-Ju Wu
,
Takehiro Tanaka
,
Tomoyuki Komori
,
Mikiya Fujii
,
Hiroshi Mizuno
,
Satoshi Itoh
,
Tadanobu Takada
,
Erina Fujita
, and
Yibin Xu
Date Uploaded:
21/03/2023
Date Modified:
23/03/2023
Modification of aluminum current collectors with laser-scribed graphene for enhancing the performance of lithium ion batteries
Description/Abstract:
In this study, the graphene-modified Al foils have been prepared to assemble lithium ion batteries (LIBs). The graphene-modified Al foils...
Keyword:
Graphene, Laser irradiation, Current collector, Lithium ion battery
Resource Type:
Article
Author:
Er-Chieh Cho
,
Cai-Wan Chang-Jian
,
Yen-Ju Wu
,
Szu-Han Chao
,
Jen-Hsien Huang
,
Kuen-Chan Lee
,
Huei Chu Weng
, and
Shih-Chieh Hsu
Date Uploaded:
17/03/2023
Syntheses of Water-soluble Silver(II)-Phthalocyanines toward Optical Sensing for Thiol Detection
Description/Abstract:
Water-soluble silver(II)-phthalocyanine complexes (AgPcs), tetrakis{4-(N-alkylpyridinium)thio}phthalocyaninato silver(II) tetrafluorobora...
Keyword:
phthalocyanine
Resource Type:
Article
Author:
Hiroaki Isago
,
Harumi Fujita
,
Suzuko Nakai
, and
Tamotsu Sugimori
Date Uploaded:
17/03/2023
Date Modified:
28/03/2023
Polyimide-Derived Carbon-Coated Li4Ti5O12 as High-Rate Anode Materials for Lithium Ion Batteries
Description/Abstract:
Carbon-coated Li4Ti5O12 (LTO) has been prepared using polyimide (PI) as a carbon source via the thermal imidization of polyamic acid (PAA...
Keyword:
Li4Ti5O12; polyimide; carbon coating; lithium ion battery; rate performance
Resource Type:
Article
Author:
Shih-Chieh Hsu
,
Tzu-Ten Huang
,
Yen-Ju Wu
,
Cheng-Zhang Lu
,
Huei Chu Weng
,
Jen-Hsien Huang
,
Cai-Wan Chang-Jian
, and
Ting-Yu Liu
Date Uploaded:
17/03/2023
Date Modified:
20/03/2023
Narrow-Band Emitting Phosphor Na2Cs2Sr(B9O15)2:Eu2+ Discovered from Local Structure Similarity with Sulfate Phosphor
Description/Abstract:
Narrow-band emitting phosphors are required to improve performance of phosphor-converted light-emitting diodes. Here, we found a new narr...
Keyword:
Eu2+
,
local structure similarity
,
narrow-band emission
, and
phosphor
Resource Type:
Article
Author:
Shota Takemura
,
Yukinori Koyama
,
Takayuki Nakanishi
,
Shiro Funahashi
,
Naoto Hirosaki
,
Hidekazu Ikeno
, and
Takashi Takeda
Date Uploaded:
09/03/2023
Nano-Indentation Measurement for Heat Resistant Alloys at Elevated Temperatures in Inert Atmosphere
Description/Abstract:
A new approach of nano-indentation measurements at elevated temperatures has been developed to evaluate a temperature-dependent mechanica...
Keyword:
elastic modulus
,
hardness
,
high-temperature nano-indentation
, and
nickel-based superalloy
Resource Type:
Article
Author:
RUZIC, Jovana
,
WATANABE, Ikumu
,
GOTO, Kenta
, and
OHMURA, Takahito
Date Uploaded:
03/03/2023
Chemically Crosslinked Sulfonated Polyphenylsulfone (CSPPSU) Membranes for PEM Fuel Cells
Description/Abstract:
Sulfonated polyphenylsulfone (SPPSU) with a high ion exchange capacity (IEC) was synthesized using commercially available PPSU, and a lar...
Keyword:
CSPPSU
,
High IEC
,
activation
,
PEMFCs
, and
PPSU
Resource Type:
Article
Author:
Je-Deok Kim
,
Akihiro Ohira
, and
Hidenobu Nakao
Date Uploaded:
03/03/2023
Dissimilarity measure of local structure in inorganic crystals using Wasserstein distance to search for novel phosphors
Description/Abstract:
To efficiently search for novel phosphors, we propose a dissimilarity measure of Local Structure using the Wasserstein distance. This sim...
Keyword:
Wasserstein distance
,
local structure
,
phosphors
, and
similarity measure
Resource Type:
Article
Author:
Shota Takemura
,
Takashi Takeda
,
Takayuki Nakanishi
,
Yukinori Koyama
,
Hidekazu Ikeno
, and
Naoto Hirosaki
Date Uploaded:
03/03/2023
Water Electrolysis Using a Porous IrO2/Ti/IrO2 Catalyst Electrode and Nafion Membranes at Elevated Temperatures
Description/Abstract:
Porous IrO2/Ti/IrO2 catalyst electrodes were obtained by coating IrO2 on three types of porous Ti powder sheets (sample 1, sample 2, and ...
Keyword:
elevated temperature
,
nafion membrane
,
polymer electrolyte
,
porous IrO2/Ti/IrO2 catalyst electrode
, and
water electrolysis
Resource Type:
Article
Author:
Je-Deok Kim
and
Akihiro Ohira
Date Uploaded:
03/03/2023
Crosslinked Sulfonated Polyphenylsulfone (CSPPSU) Membranes for Elevated-Temperature PEM Water Electrolysis
Description/Abstract:
In order to reduce the burden on the environment, there is a need to develop non-fluorinated electrolyte membranes as alternatives to flu...
Keyword:
CSPPSU membrane
,
PEM water electrolysis
,
elevated temperature
,
engineering plastic PPSU
, and
hydrocarbon electrolytes
Resource Type:
Article
Author:
Jedeok Kim
and
Akihiro Ohira
Date Uploaded:
03/03/2023
Multiscale analysis of mechanical behavior of multilayer steel structures fabricated by wire and arc additive manufacturing
Description/Abstract:
The mechanical behavior of multilayer steel structures fabricated via wire and arc additive manufacturing (WAAM) has been investigated fr...
Keyword:
Wire and arc additive manufacturing
,
finite element method
,
instrumented indentation
,
multiscale characterization
, and
stainless steel
Resource Type:
Article
Author:
Ikumu Watanabe
,
Zhengzhong Sun
,
Houichi Kitano
, and
Kenta Goto
Date Uploaded:
02/03/2023
Topological alternation from structurally adaptable to mechanically stable crosslinked polymer
Description/Abstract:
Stimuli-responsive polymers with complicated but controllable shape-morphing behaviors are critically desirable in several engineering f...
Keyword:
Covalent adaptable network polymer
,
creep deformation
,
shape-morphing polymer material
, and
topological alternation
Resource Type:
Article
Author:
Wei-Hsun Hu
,
Ta-Te Chen
,
Ryo Tamura
,
Kei Terayama
,
Siqian Wang
,
Ikumu Watanabe
, and
Masanobu Naito
Date Uploaded:
02/03/2023
Stress dependence of indentation modulus for carbon fiber in polymer composite
Description/Abstract:
Elastic modulus measured through atomic force microscopy (AFM)-based indentation on single carbon fiber (CF) is found with dependence on ...
Keyword:
Atomic force microscopy
and
indentation
Resource Type:
Article
Author:
Hongxin Wang
,
Han Zhang
,
Daiming Tang
,
Kenta Goto
,
Ikumu Watanabe
,
Hideaki Kitazawa
,
Masamichi Kawai
,
Hiroaki Mamiya
, and
Daisuke Fujita
Date Uploaded:
02/03/2023
Estimation of Texture-Dependent Stress-Strain Curve and <i>r</i>-Value of Aluminum Alloy Sheet Using Deep Learning
Description/Abstract:
Deformation of an aluminum alloy sheet which is affected by its underlying crystallographic texture has been widely studied using crystal...
Keyword:
crystallite orientation
,
deep learning
,
flow stress
,
numerical analysis
,
tension test
, and
texture
Resource Type:
Article
Author:
Kohta Koenuma
,
Akinori Yamanaka
,
Ikumu Watanabe
, and
Toshihiko Kuwabara
Date Uploaded:
02/03/2023
計測インフォマティクスと機械学習
Description/Abstract:
計測に機械学習など、統計的な手法を導入するときの共通課題を、関連技術の歴史を織り交ぜつつ解説します。材料が持つ物理・化学的コンテキストの多様性と、本来計測が持つべき汎化性を評価軸にして、代表的な手法の位置づけと応用における制約を考え、計測インフォマティクスを材料開発などに展...
Keyword:
クラスタリング
,
コンテキスト
,
分類
,
機械学習
,
照合
,
特徴量
, and
計測インフォマティクス
Resource Type:
Article
Author:
石井真史
Date Uploaded:
02/03/2023
Stress mapping reveals extrinsic toughening of brittle carbon fiber in polymer matrix
Description/Abstract:
We conducted an in situ study on CFRP fracturing process using atomic-force-microscopybased stress-sensitive indentation. Tensile stress ...
Keyword:
AFM
,
CFRP
,
Stress
, and
indentation
Resource Type:
Article
Author:
Hongxin Wang
,
Han Zhang
,
Kenta Goto
,
Ikumu Watanabe
,
Hideaki Kitazawa
,
Masamichi Kawai
,
Hiroaki Mamiya
, and
Daisuke Fujita
Date Uploaded:
02/03/2023
Inverse estimation approach for elastoplastic properties using the load-displacement curve and pile-up topography of a single Berkovich indentation
Description/Abstract:
An approach for the inverse estimation of the elastoplastic properties from a single indentation with a Berkovich indenter was developed....
Keyword:
Elastic-plastic material
,
Finite elements
,
Indentation
,
Inverse analysis
, and
Mechanical testing
Resource Type:
Article
Author:
Kenta Goto
,
Ikumu Watanabe
, and
Takahito Ohmura
Date Uploaded:
02/03/2023
Anisotropic Multiscale Modelling in SAE-AISI 1524 Gas Tungsten Arc Welded Joints
Description/Abstract:
A transient non-linear multiscale finite element heat flow-mechanical model to determine micro residual stresses (type III) and micro pla...
Keyword:
GTA welding
,
anisotropy
,
digital microstructure code
,
micro residual stresses
,
sub-modeling
, and
thermal gradients
Resource Type:
Article
Author:
Edison A. Bonifaz
and
Ikumu Watanabe
Date Uploaded:
28/02/2023
High Current Output Hydrogenated Diamond Triple-Gate MOSFETs
Description/Abstract:
In this paper, planar-type and novel triple-gate fin-type hydrogenated diamond (H-diamond) metal-oxide-semiconductor field-effect transis...
Keyword:
Diamond
,
MOSFET
, and
triple-gate
Resource Type:
Article
Author:
LIU, Jiangwei
,
OOSATO, Hirotaka
,
DA, Bo
, and
KOIDE, Yasuo
Date Uploaded:
28/02/2023
Analysis of Nano-hardness Distribution Near the Ferrite-martensite Interface in a Dual Phase Steel with Factorization of Its Scattering Behavior
Description/Abstract:
We investigated the local preliminary hardening of ferrite near the ferrite–martensite interfaces in a dual-phase (DP) steel. Geometrical...
Keyword:
dual phase steel
,
grains and interfaces
,
nanoindentation
,
scattering
, and
serial sectioning
Resource Type:
Article
Author:
Reon Ando
,
Takashi Matsuno
,
Tomoko Matsuda
,
Norio Yamashita
,
Hideo Yokota
,
Kenta Goto
, and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Understanding Complex Electron Radiolysis in Saline Solution by Big Data Analysis
Description/Abstract:
In this article, we developed a new method to analyze the complex chemical reactions induced by electron beam radiolysis based on big dat...
Keyword:
Complex Electron Radiolysis
Resource Type:
Article
Author:
Zhihao Zhang
,
Hongxuan Guo
,
Bo Liu
,
Dali Xian
,
Xuanxuan Liu
,
Bo Da
, and
Litao Sun
Date Uploaded:
28/02/2023
Data-driven estimation of plastic properties in work-hardening model combining power-law and linear hardening using instrumented indentation test
Description/Abstract:
In this study, a method for determining the additional material constant in a modified work-hardening model combining power-law and linea...
Keyword:
Elastic-plastic material
,
finite element method
,
instrumented indentation test
,
material database
, and
response surface
Resource Type:
Article
Author:
Ta-Te Chen
and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Three-Dimensionally Gradient and Periodic Harmonic Structure for High Performance Advanced Structural Materials
Description/Abstract:
Creation of a unique “Harmonic Structure (HS)” with controlled bimodal grain size distribution in metals and alloys is a new material de...
Keyword:
bimodal Titanium
,
harmonic structure
,
lightweight materials
,
powder metallurgy
,
severe plastic deformation
, and
strengthening
Resource Type:
Article
Author:
Sanjay Kumar Vajpai
,
Han Yu
,
Mie Ota
,
Ikumu Watanabe
,
Guy Dirras
, and
Kei Ameyama
Date Uploaded:
28/02/2023
Data-driven estimation of plastic properties of alloys using neighboring indentation test
Description/Abstract:
A data-driven estimation method for the plastic properties of alloys was proposed using indentations at neighboring positions. An instrum...
Keyword:
Elastic-plastic material
,
finite element method
,
instrumented indentation test
,
material database
,
mechanical testing
, and
response surface
Resource Type:
Article
Author:
Ta-Te Chen
,
Ikumu Watanabe
,
Dayuan Liu
, and
Kenta Goto
Date Uploaded:
28/02/2023
Determination of electron backscattering coefficient of beryllium by a high-precision Monte Carlo simulation
Description/Abstract:
We present an up-to-date Monte Carlo simulation of electron backscattering coefficient of beryllium, which is an important material in fu...
Keyword:
electron backscattering coefficient
Resource Type:
Article
Author:
Abrar Hussain
,
Lihao Yang
,
Shifeng Mao
,
Bo Da
,
Károly Tőkési
, and
Z.J. Ding
Date Uploaded:
28/02/2023
Reliable Ohmic Contact Properties for Ni/Hydrogen-Terminated Diamond at Annealing Temperature up to 900 °C
Description/Abstract:
Ohmic contact with high thermal stability is essential to promote hydrogen-terminated diamond (H-diamond) based electronic devices for hi...
Keyword:
Ni
,
high-temperature
,
hydrogen-terminated diamond (H-diamond)
,
ohmic contact
, and
specific contact resistance
Resource Type:
Article
Author:
Xiaolu Yuan
,
Jiangwei Liu
,
Jinlong Liu
,
Junjun Wei
,
Bo Da
,
Chengming Li
, and
Yasuo Koide
Date Uploaded:
28/02/2023
Reprogrammable flexible mechanical metamaterials
Description/Abstract:
Mechanical metamaterials are artificial structures with structure-dependent properties. They often harness zero-energy deformation modes....
Keyword:
Buckling
,
Imperfection
,
Mechanical metamaterials
,
Negative Poisson’s ratios
,
Shape-memory polymers
, and
Soft robotics
Resource Type:
Article
Author:
Xiaoyang Zheng
,
Koichiro Uto
,
Wei-Hsun Hu
,
Ta-Te Chen
,
Masanobu Naito
, and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Characterization of the Strain-Rate-Dependent Plasticity of Alloys Using Instrumented Indentation Tests
Description/Abstract:
Instrumented indentation tests are an efficient approach to characterize stress--strain curves instead of tensile or compression tests an...
Keyword:
finite elements
,
instrumented indentation test
,
mechanical testing
, and
strain-rate-dependent plasticity
Resource Type:
Article
Author:
Ta-Te Chen
,
Ikumu Watanabe
, and
Tatsuya Funazuka
Date Uploaded:
28/02/2023
A mathematically defined 3D auxetic metamaterial with tunable mechanical and conduction properties
Description/Abstract:
An auxetic metamaterial is a type of mechanical metamaterial that has negative Poisson's ratio. Most auxetic metamaterials are truss-base...
Keyword:
3D printing
,
Electroless plating
,
Metamaterial
,
Minimal surface
, and
Negative Poisson’s ratio
Resource Type:
Article
Author:
Xiaoyang Zheng
,
Xiaofeng Guo
, and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Thermal stability investigation for Ohmic contact properties of Pt, Au, and Pd electrodes on the same hydrogen-terminated diamond
Description/Abstract:
Here, thermal stabilities for Ohmic contact properties of Pt, Au, and Pd on the same hydrogen-terminated diamond (H-diamond) epitaxial la...
Keyword:
thermal stabilities for Ohmic contact properties
Resource Type:
Article
Author:
Xiaolu Yuan
,
Jiangwei Liu
,
Siwu Shao
,
Jinlong Liu
,
Junjun Wei
,
Bo Da
,
Chengming Li
, and
Yasuo Koide
Date Uploaded:
28/02/2023
Tensile deformation behavior of TRIP-aided bainitic ferrite steel in the post-necking strain region
Description/Abstract:
This study validated the methods for the evaluation of stress triaxiality using finite element (FE) simulations. The FE simulations traci...
Keyword:
Advanced high-strength steel
,
finite element simulation
,
large strain
,
small round-bar tensile test
,
stress-triaxiality
, and
synchrotron X-ray diffraction
Resource Type:
Article
Author:
Takashi Matsuno
,
Tomohiko Hojo
,
Ikumu Watanabe
,
Ayumi Shiro
,
Takahisa Shobu
, and
Kentaro Kajiwara
Date Uploaded:
28/02/2023
Origin of phase stability in Fe with long-period stacking order as an intermediate phase in cyclic γ−ε martensitic transformation
Description/Abstract:
A class of Fe-Mn-Si based alloys was found to exhibit a reversible martensitic transformation between the gamma (fcc) and epsilon (hcp) p...
Resource Type:
Article
Author:
Takao Tsumuraya
,
Ikumu Watanabe
, and
Takahiro Sawaguchi
Date Uploaded:
28/02/2023
Effect of Punch Surface Microtexture on the Microextrudability of AA6063 Micro Backward Extrusion
Description/Abstract:
To apply conventional forming processes to microscale processing, the influence of size effects caused by material properties and frictio...
Keyword:
aluminum alloy
,
microextrusion
,
microtexture
,
size effect
, and
tribology
Resource Type:
Article
Author:
Tatsuya Funazuka
,
Kuniaki Dohda
,
Tomomi Shiratori
,
Syunsuke Horiuchi
, and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Controllable inverse design of auxetic metamaterials using deep learning
Description/Abstract:
As typical mechanical metamaterials with negative Poisson's ratios, auxetic metamaterials exhibit counterintuitive auxetic behaviors tha...
Keyword:
Additive manufacturing
,
Generative adversarial network
,
Metamaterial
,
Negative Poisson’s ratio
, and
Voronoi tessellation
Resource Type:
Article
Author:
Xiaoyang Zheng
,
Ta-Te Chen
,
Xiaofeng Guo
,
Sadaki Samitsu
, and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Numerical calculation and finite element analysis for anisotropic elastic properties of carbon fibers: Dependence of integration subinterval and mesh size on indentation-derived elastic modulus
Description/Abstract:
The elastic modulus measured by indentation of carbon fibers with various anisotropic elasticity is calculated by two numerical approache...
Keyword:
Vlassak–Nix model
,
anisotropic elasticity
,
finite element method
,
indentation
, and
numerical integration
Resource Type:
Article
Author:
Kenta Goto
,
Kimiyoshi Naito
,
Keiichi Shirasu
, and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Virtual substrate method for nanomaterials characterization
Description/Abstract:
Characterization techniques available for bulk or thin-film solid-state materials have been extended to substrate-supported nanomaterials...
Keyword:
Virtual substrate method
Resource Type:
Article
Author:
Bo Da
,
Jiangwei Liu
,
Mahito Yamamoto
,
Yoshihiro Ueda
,
Kazuyuki Watanabe
,
Nguyen Thanh Cuong
,
Songlin Li
,
Kazuhito Tsukagoshi
,
Hideki Yoshikawa
,
Hideo Iwai
,
Shigeo Tanuma
,
Hongxuan Guo
,
Zhaoshun Gao
,
Xia Sun
, and
Zejun Ding
Date Uploaded:
28/02/2023
Deep-learning-based inverse design of three-dimensional architected cellular materials with the target porosity and stiffness using voxelized Voronoi lattices
Description/Abstract:
Architected cellular materials are a class of artificial materials with cellular architecture-dependent properties. Typically, designing ...
Keyword:
Architected materials
,
Voronoi lattices
,
finite element simulation
,
generative adversarial network
,
inverse design
, and
mechanical properties
Resource Type:
Article
Author:
Xiaoyang Zheng
,
Ta-Te Chen
,
Xiaoyu Jiang
,
Masanobu Naito
, and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Individual separation of surface, bulk and Begrenzungs effect components in the surface electron energy spectra
Description/Abstract:
We present the first theoretical recipe for the clear and individual separation of surface, bulk and Begrenzungs effect components in sur...
Keyword:
reflection electron energy loss spectroscopy spectrum
Resource Type:
Article
Author:
Lihao Yang
,
Bo Da
,
Károly Tőkési
, and
Z. J. Ding
Date Uploaded:
28/02/2023
Multiscale characterization of a polycrystalline aggregate subjected to severe plastic deformation with the finite element method
Description/Abstract:
The heterogeneous deformation of a polycrystalline aggregate under severe plastic deformation was reproduced with finite element analysis...
Keyword:
crystal plasticity
,
finite element analysis
,
severe plastic deformation
, and
texture
Resource Type:
Article
Author:
Ikumu Watanabe
and
Daigo Setoyama
Date Uploaded:
28/02/2023
Numerical Estimation of Frictional Effects in Equal Channel Angular Extrusion
Description/Abstract:
The purpose of this study is to numerically estimate the friction coefficient for equal channel angular extrusion (ECAE) with and without...
Keyword:
equal channel angular extrusion
,
finite element analysis
, and
friction model
Resource Type:
Article
Author:
Vinicius Aguiar de Souza
,
Ikumu Watanabe
, and
Akira Yanagida
Date Uploaded:
28/02/2023
Deep neural network approach to estimate biaxial stress-strain curves of sheet metals
Description/Abstract:
Multiaxial material testing is used to evaluate plastic deformation behavior of sheet metals in multiaxial stress states. A constitutive ...
Keyword:
Aluminum alloy sheets
,
Deep neural network
,
Material modeling
, and
Multiaxial material testing
Resource Type:
Article
Author:
Akinori Yamanaka
,
Ryunosuke Kamijyo
,
Kohta Koenuma
,
Ikumu Watanabe
, and
Toshihiko Kuwabara
Date Uploaded:
28/02/2023
Effect of Punch Surface Grooves on Microformability of AA6063 Backward Microextrusion
Description/Abstract:
In order to apply conventional forming processes at the micro scale, the size effects caused by material properties and frictional effect...
Keyword:
aluminum alloy
,
grain size
,
microextrusion
,
microtexture
, and
size effect
Resource Type:
Article
Author:
Tatsuya Funazuka
,
Kuniaki Dohda
,
Tomomi Shiratori
,
Ryo Hiramiya
, and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Relationship Extraction with Weakly Supervised Learning Based on Process-Structure-Property-Performance Reciprocity
Description/Abstract:
We developed a computer aided material design system that extracts relationships from natural language texts in weakly labeled data. We b...
Keyword:
Natural language processing
,
knowledge extraction
,
materials informatics
,
relation extraction
, and
weakly supervised learning
Resource Type:
Article
Author:
Takeshi Onishi
,
Takuya Kadohira
, and
Ikumu Watanabe
Date Uploaded:
17/02/2023
Date Modified:
22/03/2024
Forced Gradient Copolymer for Rational Design of Mussel-Inspired Adhesives and Dispersants
Description/Abstract:
イガイの接着機構を模倣した接着性ポリマーにおいて、接着部位の位置がAl-Al間の接着強度やチタン酸バリウムの分散性に影響を及ぼすことを明らかにした。
Keyword:
dispersant
,
BaTiO3
,
L-3,4- dihydroxyphenylalanine
,
adhesive
,
dopamine
,
forced gradient polymer
,
gallic acid
, and
mussel-inspired polymer
Resource Type:
Article
Author:
Takehiro Fujita
,
Masami Shuta
,
Mika Mano
,
Shinnosuke Matsumoto
,
Atsushi Nagasawa
,
Akihiro Yamada
, and
Masanobu Naito
Date Uploaded:
15/02/2023
Date Modified:
28/03/2024
Understanding the evolution of a de novo molecule generator via characteristic functional group monitoring
Description/Abstract:
AIを用いた機能性有機化合物の開発。
Keyword:
De novo molecule generation
,
characteristic functional group monitoring
,
chromophore
, and
deep learning
Resource Type:
Article
Author:
Takehiro Fujita
,
Kei Terayama
,
Masato Sumita
,
Ryo Tamura
,
Yasuyuki Nakamura
,
Masanobu Naito
, and
Koji Tsuda
Date Uploaded:
15/02/2023
Date Modified:
20/03/2024
Data-Driven Design of Transparent Thermal Insulating Nanoscale Layered Oxides
Description/Abstract:
Predicting the interfacial thermal resistance (ITR) for various material systems is a time-consuming process. In this study, we applied o...
Keyword:
thermal conductivity; thermal insulator; thin film; superlattice; transparency
Resource Type:
Article
Author:
Yen-Ju Wu
and
Yibin Xu
Date Uploaded:
13/02/2023
マテリアルズ・インフォマティクス(MI)の現状と将来展望
Description/Abstract:
材料データの現状と世界のMI研究プロジェクトをレビューし、MIの有効性、課題、および将来の展望について述べる。
Keyword:
マテリアルズインフォマティクス、現状、展望
Resource Type:
Article
Author:
徐 一斌
Date Uploaded:
13/02/2023
CrySPY: a crystal structure prediction tool accelerated by machine learning
Description/Abstract:
We have developed an open-source software called CrySPY, which is a crystal structure prediction tool written in Python 3, ...
Keyword:
evolutionary algorithm
,
Bayesian optimization
,
LAQA
,
crystal structure prediction
, and
first-principles calculations
Resource Type:
Article
Author:
Tomoki Yamashita
,
Shinichi Kanehira
,
Nobuya Sato
,
Hiori Kino
,
Kei Terayama
,
Hikaru Sawahata
,
Takumi Sato
,
Futoshi Utsuno
,
Koji Tsuda
,
Takashi Miyake
, and
Tamio Oguchi
Date Uploaded:
10/02/2023
Date Modified:
02/04/2024
Important Descriptors and Descriptor Groups of Curie Temperatures of Rare-earth Transition-metal Binary Alloys
Description/Abstract:
We analyze Curie temperatures of rare-earth transition metal binary alloys with machine learning method. In order to select important de...
Keyword:
Curie temperature
,
binary rare-earth transition metal
,
descriptor importance
,
exhaustive search
,
hierarchical clustering
, and
subgroup relevance analysis
Resource Type:
Article
Author:
Hieu Chi Dam
,
Viet Cuong Nguyen
,
Tien Lam Pham
,
Anh Tuan Nguyen
,
Kiyoyuki Terakura
,
Takashi Miyake
, and
Hiori Kino
Date Uploaded:
10/02/2023
Date Modified:
20/03/2024
Automatic exhaustive calculations of large material space by Korringa-Kohn-Rostoker coherent potential approximation method — Applied to equiatomic quaternary high entropy alloys
Description/Abstract:
Automatic exhaustive exploration of a large material space by high-performance supercomput- ers is crucial for developing new functional...
Keyword:
AkaiKKR
,
Automatic exhaustive exploration
,
Curie temperature
,
law aquisition
,
magnetization
,
quaternary high entropy alloys
, and
residual resistivity
Resource Type:
Article
Author:
T. Fukushima
,
H. Akai
,
T. Chikyow
, and
H. Kino
Date Uploaded:
09/02/2023
Date Modified:
28/03/2024
Prediction of continuous cooling transformation diagram for weld heat affected zone by machine learning
Description/Abstract:
The continuous cooling transformation (CCT) diagram of steels is very important in considering the phase transformation depending on the ...
Keyword:
CCT
Resource Type:
Article
Author:
Satoshi Minamoto
,
Susumu Tsukamoto
,
Tadashi Kasuya
,
Makoto Watanabe
, and
Masahiko Demura
Date Uploaded:
09/02/2023
Date Modified:
20/03/2024
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HfO2
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InP/GaInAsP multilayer specimens
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41 elemental solids (Li, Be, graphite, diamond, glassy C, Na, Mg, Al, Si, K, Sc, Ti, V, Cr, Fe, Co, Ni, Cu, Ge, Y, Nb, Mo, Ru, Rh, Pd, Ag, In, Sn, Cs, Gd, Tb, Dy, Hf, Ta, W, Re, Os, Ir, Pt, Au, and Bi)
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轟 眞市
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田邉 浩介
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International Center for Materials Nanoarchitectonics (WPI-MANA)
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Ikumu Watanabe
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Physical Review B
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Science and Technology of Advanced Materials
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Scientific Reports
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Surface and Interface Analysis
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