Unusual grain coarsening behavior of bismuth under high pressure
文献类型：期刊论文
| 作者 | Li, X; Yan, XZ; Liang, H; Wang, QM; Lei, L; Peng, F; Yang, K; He, DW |
| 刊名 | MATERIALS LETTERS
 |
| 出版日期 | 2018 |
| 卷号 | 232期号:-页码:22-24 |
| ISSN号 | 0167-577X |
| DOI | 10.1016/j.matlet.2018.08.016 |
| 文献子类 | 期刊论文 |
| 英文摘要 | It is well known the atomic diffusion caused by high temperature leads to conspicuous grain coarsening, which is of crucial importance to the properties of materials. High pressure usually slows down the diffusion rate of atoms and refines the grain size. In this study, using synchrotron angle dispersive x-ray diffraction (ADXRD) techniques, we observed an abnormal grain coarsening behavior of bismuth (Bi) stemming from the high pressure phase transition at room temperature, demonstrating that the grain coarsening can also be triggered by pressure. Two factors mainly give raise to this unusual coarsening behavior of Bi: (1) the nucleation rate of new phase is very slow during transformation according to the kinetics study of the phase transition in Bi, which inhibits the grain refinement; (2) the liquid interphase in the phase transition process enables the recrystallization of Bi under high pressure. Our experiment results are consistent with the previous theoretical calculations, which is crucial for describing the nucleation and growth process and clarifying the phase transition mechanisms in Bi. (C) 2018 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31170]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Southern Univ Sci & Technol, Dept Phys, Shenzhen, Peoples R China 2.Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Sichuan, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, X,Yan, XZ,Liang, H,et al. Unusual grain coarsening behavior of bismuth under high pressure[J]. MATERIALS LETTERS,2018,232(-):22-24. |
| APA | Li, X.,Yan, XZ.,Liang, H.,Wang, QM.,Lei, L.,...&He, DW.(2018).Unusual grain coarsening behavior of bismuth under high pressure.MATERIALS LETTERS,232(-),22-24. |
| MLA | Li, X,et al."Unusual grain coarsening behavior of bismuth under high pressure".MATERIALS LETTERS 232.-(2018):22-24. |
入库方式： OAI收割
来源：上海应用物理研究所
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