| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2014-09-26 |
| タイトル |
|
|
タイトル |
High-strain-rate superplasticity in oxide ceramics: a trial of microstructural design based on creep-cavitation mechanisms |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Grain-boundary sliding |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Accommodation |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Stress concentration |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Diffusional relaxation |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Cavity nucleation |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Cavity growth |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Dynamic grain growth |
| 資源タイプ |
|
|
資源 |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
HIRAGA, Keijiro
KIM, Byung-Nam
MORITA, Koji
YOSHIDA, Hidehiro
SAKKA, Yoshio
TABUCHI, Masaaki
|
| 著者別名 |
|
|
|
識別子Scheme |
WEKO |
|
|
識別子 |
39555 |
|
|
姓名 |
平賀, 啓二郎 |
|
|
言語 |
ja |
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
From existing knowledge about high-temperature cavitation mechanisms, necessary conditions were discussed for the suppression of cavitation failure during superplastic deformation in ceramic materials. The discussion, where special attention was placed on the relaxation of stress concentrations during grain-boundary sliding and cavity nucleation and growth, leaded to a conclusion that cavitation failure could be retarded by the simultaneous controlling of the initial grain size, the number of residual defects, diffusivity, dynamic grain growth and the homogeneity of microstructure. On the basis of this conclusion, high-strain-rate superplasticity (defined as superplasticity at a strain rate higher than 0.01 s-1 could be intentionally attained in some oxide ceramic materials. This was shown in tetragonal zirconia and composites consisting of zirconia, α-alumina and a spinel phase. |
| 書誌情報 |
Acta Metallurgica Sinica(English Letters)
巻 24,
号 3,
p. 195-204,
発行日 2011-06
|
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://doi.org/10.11890/1006-7191-113-195 |
| 出版者 |
|
|
出版者 |
Elsevier |
|
言語 |
en |
| 著者版フラグ |
|
|
言語 |
en |
|
値 |
author |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
No357.pdf (520.6 kB)
