A special coarsening mechanism for intergranular helium bubbles upon heating: A combined experimental and numerical study
A special coarsening mechanism for intergranular helium bubbles upon heating: A combined experimental and numerical study
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加热时晶间氦气泡的特殊粗化机制:实验与数值相结合的研究
DOI:
10.1016/j.scriptamat.2018.01.006
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发表时间:
2018-04
影响因子:
6
通讯作者:
Yan Li
中科院分区:
文献类型:
--
作者:
Jie Gao;Hefei Huang;Xiang Liu;Chengbin Wang;James F. Stubbins;Yan Li
Here, by usingin situtransmission electron microcopy, we discovered a special mechanism governing the coarsening of intergranular helium bubbles, which exhibit pancake-like growth along grain boundaries to achieve coalescence with another bubble upon heating at 673 K. The developed analytical model, addressing the stress field induced by the bubble internal pressure, well reproduced the observed shape evolution during the bubble growth. Moreover, we show that the coalescing rate of intergranular bubbles was controlled by the surface diffusion and can be accelerated by the pressure gradient between bubbles.
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影响因子:
9.4
作者:
Reichardt, Ashley;Ionescu, Mihail;Bhattacharyya, Dhriti
通讯作者:
Bhattacharyya, Dhriti
DOI:
10.1088/0031-9112/26/11/045
发表时间:
1975-11
期刊:
Physics Bulletin
影响因子:
--
作者:
D. Shaw
通讯作者:
D. Shaw
影响因子:
3.1
作者:
Trinkaus, H;Singh, BN
通讯作者:
Singh, BN
影响因子:
8.6
作者:
Ding Ming-Shuai;Tian Lin;Han Wei-Zhong;Li Ju;Ma Evan;Shan Zhi-Wei
通讯作者:
Shan Zhi-Wei
DOI:
10.1007/978-3-319-48206-4
发表时间:
2016
期刊:
Diffusion in Solids
影响因子:
--
作者:
P. Shewmon
通讯作者:
P. Shewmon