Abnormal grain growth of UO2 with pores in the final stage of sintering: A phase field study
文献类型：期刊论文
| 作者 | Huang, Qing; Du, Shiyu; Guo, Yaolin; Liu, Zhen; Lin, Cheng-Te |
| 刊名 | COMPUTATIONAL MATERIALS SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 145页码:24-34 |
| 关键词 | Uranium-dioxide Kinetics Simulation Energy Model Size Systems |
| 英文摘要 | The phase field formulation has been employed to investigate the abnormal grain growth behaviors for UO2 with pores in the final stage of sintering. The microstructure evolution is found dependent on the total volume fraction and individual sizes of pores. The grain growth rate is evidently suppressed when the porosity is high and it is found independent of pore size at low porosity. Moreover, the smaller pores may cause worse abnormal grain growth at low porosities and more significant stagnation effect at high porosities in the sintering of UO2. By further inspection on pore-boundary interaction in a bi-grain system designed in this work, the grain growth behavior is determined to be strongly correlated to the engulfment of pores by grains which may be described by the critical grain radius and critical time defined hereby. The data obtained may provide a new insight into the mechanism behind the sintering technology of nuclear fuels such as UO2. (C) 2018 Elsevier B.V. All rights reserved. |
| 学科主题 | Materials Science |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/16737]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Huang, Qing,Du, Shiyu,Guo, Yaolin,et al. Abnormal grain growth of UO2 with pores in the final stage of sintering: A phase field study[J]. COMPUTATIONAL MATERIALS SCIENCE,2018,145:24-34. |
| APA | Huang, Qing,Du, Shiyu,Guo, Yaolin,Liu, Zhen,&Lin, Cheng-Te.(2018).Abnormal grain growth of UO2 with pores in the final stage of sintering: A phase field study.COMPUTATIONAL MATERIALS SCIENCE,145,24-34. |
| MLA | Huang, Qing,et al."Abnormal grain growth of UO2 with pores in the final stage of sintering: A phase field study".COMPUTATIONAL MATERIALS SCIENCE 145(2018):24-34. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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