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Mechanism of local hydrogen entry into Fe sheets induced by atmospheric corrosion: Significance of potential, pH, and rust layer thickness
Description/Abstract:
Local hydrogen entry under a NaCl droplet on an Fe sheet was analyzed employing a hydrogenochromic sensor and electrochemical hydrogen pe...
Keyword:
Iron, Hydrogen permeation, Atmospheric corrosion
Resource Type:
Article
Author:
Hiroshi Kakinuma
,
Sachiko Hiromoto
,
Tomohiko Hojo
,
Saya Ajito
,
Motomichi Koyama
, and
Eiji Akiyama
Journal:
Corrosion Science
Date Uploaded:
17/04/2024
Minimal-surface-based multiphase metamaterials with highly variable stiffness
Description/Abstract:
Variable-stiffness materials have a unique ability to change their stiffness reversibly in response to external stimuli or conditions. Ho...
Keyword:
Low-melting-point alloys
,
Mechanical metamaterials
,
Phase transition
,
Shape memory
,
Triply periodic minimal surfaces
, and
Variable-stiffness materials
Resource Type:
Article
Author:
Xiaoyang Zheng
,
Ikumu Watanabe
,
Siqian Wang
,
Ta-Te Chen
, and
Masanobu Naito
Journal:
Materials & Design
Date Uploaded:
12/04/2024
Effects of time per layer and part geometry on thermal history and microcracking in the fabrication of nickel superalloy samples by laser powder bed fusion
Description/Abstract:
In this work, the purpose of the current study is to understand the effects of time per layer and part geometry on microcracking behavior...
Keyword:
Constricted geometry
,
Inconel 738 LC
,
Laser powder bed fusion
,
Microcracking
,
Thermal analysis
, and
Time per layer
Resource Type:
Article
Author:
Masahiro Kusano
,
Yusuke Takata
,
Atsushi Yumoto
, and
Makoto Watanabe
Journal:
Additive Manufacturing
Date Uploaded:
10/04/2024
Chemical-substitution-driven giant anomalous Hall and Nernst effects in magnetic cubic Heusler compounds
Description/Abstract:
Chemical substitution efficiently optimizes the physical properties of Heusler compounds, especially their anomalous transport properties...
Keyword:
Anomalous Hall conductivity
,
Anomalous Nernst conductivity
,
Heusler compounds
, and
High-throughput screening
Resource Type:
Article
Author:
Guangzong Xing
,
Keisuke Masuda
,
Terumasa Tadano
, and
Yoshio Miura
Journal:
Acta Materialia
Date Uploaded:
09/04/2024
Superconducting joints using reacted multifilament MgB2 wires: A technology toward cryogen-free MRI magnets
Description/Abstract:
The development of superconducting joining technology for reacted magnesium diboride (MgB2) conductors remains a critical challenge for t...
Keyword:
MRI applications
,
MgB2 conductor
,
MgB2 superconducting joint
,
cryogen-free magnet
, and
persistent-mode operation
Resource Type:
Article
Author:
Dipak Patel
,
Akiyoshi Matsumoto
,
Hiroaki Kumakura
,
Yuka Hara
,
Toru Hara
,
Minoru Maeda
,
Hao Liang
,
Yusuke Yamauchi
,
Seyong Choi
,
Jung Ho Kim
, and
Md Shahriar A. Hossain
Journal:
Journal of Magnesium and Alloys
Date Uploaded:
08/04/2024
Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations
Description/Abstract:
Solute segregation significantly affects material properties and is a critical issue in the laser powder-bed fusion (LPBF) additive manuf...
Keyword:
Computational thermal-fluid dynamics simulation
,
Hastelloy-X nickel-based superalloy
,
Laser powder-bed fusion
,
Phase-field method
, and
Solute element segregation
Resource Type:
Article
Author:
Masayuki Okugawa
,
Kenji Saito
,
Haruki Yoshima
,
Katsuhiko Sawaizumi
,
Sukeharu Nomoto
,
Makoto Watanabe
,
Takayoshi Nakano
, and
Yuichiro Koizumi
Journal:
Additive Manufacturing
Date Uploaded:
02/04/2024
Microstructure and thermoelectric properties of pristine and Al-doped ZnO ceramics fabricated by cost-effective and eco-friendly wet chemistry methods
Description/Abstract:
We have shown that mainly due to the differences in microstructure and possibly the varying amount of crystalline defects in the samples,...
Keyword:
thermoelectric
Resource Type:
Article
Author:
Illia Serhiienko
,
Andrei Novitskii
,
Tatyana Sviridova
,
Evgeny Kolesnikov
,
Evgeniya Chernyshova
,
Kirill Kuskov
,
Andrei Voronin
,
Vladimir Khovaylo
, and
Takao Mori
Journal:
Journal of Alloys and Compounds
Date Uploaded:
01/04/2024
Heating rate dependence of coercivity and microstructure of Fe–B–P–Cu nanocrystalline soft magnetic materials
Description/Abstract:
The nanocrystalline structure and soft magnetic properties of melt-spun Fe-B-P-Cu ribbons are largely influenced by heating rates for cry...
Keyword:
atom probe tomography
Resource Type:
Article
Author:
Yohei Nomura
,
Jun Uzuhashi
,
Tatsuya Tomita
,
Toru Takahashi
,
Hidenori Kuwata
,
Taichi Abe
,
Tadakatsu Ohkubo
, and
Kazuhiro Hono
Journal:
Journal of Alloys and Compounds
Date Uploaded:
29/03/2024
Precipitation behavior of the M23C6 phase on the coherent twin boundary of 25Cr-20Ni-Nb-N steel
Description/Abstract:
The precipitation behavior of M23C6 on random and coherent twin boundaries in aged 25Cr–20Ni–Nb–N steel was characterized. M23C6 on a ran...
Keyword:
Austenitic steel
,
Carbide
,
Coherent precipitation
, and
Twin boundary
Resource Type:
Article
Author:
Tomotaka Hatakeyama
and
Kota Sawada
Journal:
Materials Letters
Date Uploaded:
19/03/2024
Constancy of the quadrupolar interaction product in nanocrystalline gallium nitride revealed by 71Ga MAS NMR shift distribution
Description/Abstract:
The question of whether the broad 71,69Ga nuclear magnetic resonance (NMR) signal of hexagonal gallium nitride (h-GaN) at 530–330 ppm is ...
Keyword:
Carrier distribution
,
Defect
,
Knight shift
,
Korringa rule
,
MQMAS
,
Quadrupole coupling constant
, and
Semiconductor
Resource Type:
Article
Author:
Masataka Tansho
,
Takayuki Suehiro
, and
Tadashi Shimizu
Journal:
Solid State Nuclear Magnetic Resonance
Date Uploaded:
19/03/2024
Boosting areal capacitance in WO3-based supercapacitor materials by stacking nanoporous composite films
Description/Abstract:
Tungsten trioxide (WO3) is promising electrochromic materials applied to smart windows for the containment of CO2 emission, energy crisis...
Keyword:
cyclic voltammetry
,
nanoporous
,
spray-coating
, and
supercapacitor
Resource Type:
Article
Author:
Chia-Chun Wei
,
Po-Hung Lin
,
Chin-En Hsu
,
Wen-Bin Jian
,
Yu-Liang Lin
,
Jiun-Tai Chen
,
Soumallya Banerjee
,
Chih-Wei Chu
,
Akhil Pradiprao Khedulkar
,
Ruey-An Doong
, and
Kazuhito Tsukagoshi
Journal:
Cell Reports Physical Science
Date Uploaded:
19/03/2024
Mg–Zn–Cl-Integrated Functional Interface for Enhancing the Cycle Life of Mg Electrodes
Description/Abstract:
Herein, we adopted surface engineering to address this issue by alleviating the passivation characteristics of reductive Mg electrodes. A...
Keyword:
Interface
,
Magnesium electrode
,
Separator
,
Short-circuit
, and
Surface modification
Resource Type:
Article
Author:
Toshihiko Mandai
,
Umi Tanaka
, and
Mariko Watanabe
Journal:
Energy Storage Materials
Date Uploaded:
05/03/2024
Large-scale DFT calculations of multi-component glass systems (SiO2)0.70(Al2O3)0.13(XO)0.17 (X = Mg, Ca, Sr, Ba) : Accuracy of classical force fields
Description/Abstract:
Although molecular dynamics (MD) simulation is a powerful tool for investigating the atomic-scale structures of complex materials, severa...
Keyword:
Classical force fields
,
First-principles calculations
,
Large-scale DFT
,
Molecular dynamics simulations
, and
Multi-component glass
Resource Type:
Article
Author:
Atsushi Tanaka
,
Atsuki Saito
,
Takashi Murata
,
Ayako Nakata
, and
Tsuyoshi Miyazaki
Journal:
Journal of Non-Crystalline Solids
Date Uploaded:
05/03/2024
Element discrimination in a hexagonal boron nitride nanosheet by aberration corrected transmission electron microscopy
Description/Abstract:
Boron nitride nanosheets prepared by an exfoliation technique were observed by aberration corrected transmission electron microscopy at ...
Keyword:
Aberration corrector
,
Boron nitride
,
High resolution
, and
Nanosheet
Resource Type:
Article
Author:
Masanori Mitome
,
Hidetaka Sawada
,
Yukihito Kondo
,
Yasumasa Tanishiro
, and
Kunio Takayanagi
Journal:
ULTRAMICROSCOPY
Date Uploaded:
04/03/2024
An efficient cathode electrocatalyst for anion exchange membrane water electrolyzer
Description/Abstract:
A high performance and durable electrocatalyst for the cathodic hydrogen evolution reaction (HER) in anion exchange membrane (AEM) water ...
Keyword:
Anion exchange membrane water electrolyzer
,
Density functional theory
,
Hierarchical MoS2
,
In-situ Raman analysis
, and
Pt–C core-shell
Resource Type:
Article
Author:
Shanmugam Ramakrishnan
,
Subramanian Vijayapradeep
,
Selva Chandrasekaran Selvaraj
,
Jian Huang
,
S.C. Karthikeyan
,
Rambabu Gutru
,
Natarajan Logeshwaran
,
Tsuyoshi Miyazaki
,
Mohamed Mamlouk
, and
Dong Jin Yoo
Journal:
Carbon
Date Uploaded:
04/03/2024
Fine-tuning of plasmonics by Au@AuY/Au core-shell nanoparticle monolayer for enhancement of third-order nonlinearity
Description/Abstract:
A novel self-assembled Au@AuY-core/Au-shell nanoparticle (Au@AuY/Au NP) monolayer is proposed for the fine-tuning of plasmonics and enhan...
Keyword:
core-shell alloy nanostructure
,
localized surface plasmon resonance
,
plasmonics
,
sequential ion implantation
, and
third-order nonlinerity
Resource Type:
Article
Author:
Yong Liu
,
Chi Pang
,
Hiroshi Amekura
,
Thomas Schumann
,
Peng Liu
,
Zhixian Wei
,
Haocheng Liu
, and
Rang Li
Journal:
APPLIED SURFACE SCIENCE
Date Uploaded:
28/02/2024
The graphene-on-diamond structure with Ni-catalyzed under high temperature
Description/Abstract:
Graphene-on-diamond (GOD) composite structure has been attracting considerable attention due to the unique features for all carbon sp3-s...
Keyword:
diamond
Resource Type:
Article
Author:
Xiaolu Yuan
,
Jinlong Liu
,
Jiangwei Liu
,
Junjun Wei
,
Liangxian Chen
, and
Chengming Li
Journal:
Science talks
Date Uploaded:
27/02/2024
Visualization of threading dislocations in an α-Ga2O3 epilayer by HCl gas etching
Description/Abstract:
Threading dislocations in a heteroepitaxial α-Ga2O3 film was visualized as etch pits on the surface. We found that etch pits were formed ...
Keyword:
dislocation
,
etching
, and
α-Ga2O3
Resource Type:
Article
Author:
Yuichi Oshima
,
Shingo Yagyu
, and
Takashi Shinohe
Journal:
JOURNAL OF CRYSTAL GROWTH
Date Uploaded:
22/01/2024
Date Modified:
23/01/2024
Quasi-heteroepitaxial growth of β-Ga2O3 on off-angled sapphire (0001) substrates by Halide Vapor Phase Epitaxy
Description/Abstract:
We demonstrate the high-speed growth of b-Ga2O3 epilayers on off-angled sapphire (0001) substrates by the halide vapor epitaxy. (-201) or...
Keyword:
heteroepitaxy
and
β-Ga2O3
Resource Type:
Article
Author:
Yuichi Oshima
,
Encarnaciόn G. Vίllora
, and
Kiyoshi Shimamura
Journal:
JOURNAL OF CRYSTAL GROWTH
Date Uploaded:
22/01/2024
Date Modified:
23/01/2024
UV durability assessment of a thermoplastic epoxy-based hybrid composite rod for structural reinforcement and retrofitting
Description/Abstract:
Recently, a hybrid composite cable has been developed for external strengthening of structures in seismically active zones, containing a ...
Keyword:
Accelerated weathering
,
Hybrid FRP
,
Thermoplastic epoxy
, and
UV resistance
Resource Type:
Article
Author:
Jonathon Tanks
and
Kimiyoshi Naito
Journal:
Journal of Building Engineering
Date Uploaded:
25/12/2023
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