# 放射光X線CT技術を駆使した高信頼性電子デバイス材料設計のための3次元解析:積層セラミックコンデンサ(MLCC)の電極構造形成プロセス

https://mdr.nims.go.jp/datasets/04aa2511-8a3b-42f7-8af1-8306371daebd

## File

- [粉体および粉末冶金7月_大熊_2024.pdf](https://mdr.nims.go.jp/filesets/187d45bf-01ca-4b1f-9c7a-f1a259d9d5e3/download) ([Detail](https://mdr.nims.go.jp/filesets/187d45bf-01ca-4b1f-9c7a-f1a259d9d5e3.md))

## Id

04aa2511-8a3b-42f7-8af1-8306371daebd

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-07-24T05:53:15.312936Z

## Updated at

2024-07-24T23:30:21.702119Z

## Published at

2024-07-24T23:30:22.170339Z

## Doi



## First published url

https://doi.org/10.2497/jjspm.23-00059

## Date published

2024-07-15

## Recorded date published

2024

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: 放射光X線CT技術を駆使した高信頼性電子デバイス材料設計のための3次元解析:積層セラミックコンデンサ(MLCC)の電極構造形成プロセス
  title_type: original
  lang: ja

## Description

- description: Synchrotron X-ray nano computed tomography was employed to study how
    the microstructure changes during the co-sintering process of multi-layer ceramic
    capacitors (MLCC). MLCCs are composed of alternating Ni electrodes and BaTiO3
    dielectric layers. When the thickness of the electrodes was reduced to submicron
    levels, on the order of a few particle diameters, it led to the development of
    defects in the inner electrodes, resulting in a loss of capacitance. The discontinuous
    electrode region contained circular holes and irregularly shaped channels. The
    creation of these gaps was linked to an increase in the characteristic length
    of the non-uniform electrode structure, which can be described as a coarsening
    process. The transformation of the electrode's shape through surface/interface
    diffusion triggered the separation of the material connecting two holes. This
    separation was driven by instability induced by surface tension and stress, causing
    the material to form sharp points as it broke apart. These sharp points could
    potentially enhance the local electric field and lead to dielectric breakdown.
    An explanation was provided for the generation of defects arising from the arrangement
    of heterogeneous particles in the electrode layer.
  description_type: abstract
  lang: jpn

## Creator

- name: 大熊 学
  role: author
  orcid: https://orcid.org/0000-0002-2997-9166
  organization: 物質・材料研究機構
  department: 構造材料研究センター/材料創製分野/セラミックス基複合材料グループ
  ror: https://ror.org/026v1ze26
- name: 若井 史博
  role: author
  orcid: https://orcid.org/0000-0002-8391-139X
  organization: 物質・材料研究機構
  department: 構造材料研究センター/材料創製分野/セラミックス基複合材料グループ
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: 一般社団法人 粉体粉末冶金協会

## Managing organization



## Keyword

- subject: X-ray nano computed tomography, multi-layer ceramic capacitors (MLCC),
    sintering, microstructure
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: 粉体および粉末冶金　Journal of the Japan Society of Powder and Powder Metallurgy
  issn: '05328799'
  volume: '71'
  issue: '7'
  start_page: 251
  end_page: 256

## Conference



## Related item



## Funding



## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 187d45bf-01ca-4b1f-9c7a-f1a259d9d5e3
  filename: 粉体および粉末冶金7月_大熊_2024.pdf
  content_type: application/pdf
  size: 3085489
  md5: 22b594bac12f8297f962a6f91378d96a

## Thumbnail

fileset_id: 187d45bf-01ca-4b1f-9c7a-f1a259d9d5e3
filename: 粉体および粉末冶金7月_大熊_2024.pdf