Melting mechanisms at the limit of superheating
文献类型：期刊论文
| 作者 | Z. H. Jin ; P. Gumbsch ; K. Lu ; E. Ma |
| 刊名 | Physical Review Letters
 |
| 出版日期 | 2001 |
| 卷号 | 87期号:5 |
| 关键词 | embedded-atom method homogeneous crystals molecular-dynamics surface metals instabilities interface criteria defects liquid |
| ISSN号 | 0031-9007 |
| 中文摘要 | The atomic-scale details during melting of a surface-free Lennard-Jones crystal were monitored using molecular dynamics simulations. Melting occurs when the superheated crystal spontaneously generates a sufficiently large number of spatially correlated destabilized particles that simultaneously satisfy the Lindemann and Born instability criteria. The accumulation and coalescence of these internal local lattice instabilities constitute the primary mechanism for homogeneous melt nucleation inside the crystal, in lieu of surface nucleation for equilibrium melting. The vibrational and elastic lattice instability criteria as well as the homogeneous nucleation theory all coincide in determining the superheating limit. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36686]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Z. H. Jin,P. Gumbsch,K. Lu,et al. Melting mechanisms at the limit of superheating[J]. Physical Review Letters,2001,87(5). |
| APA | Z. H. Jin,P. Gumbsch,K. Lu,&E. Ma.(2001).Melting mechanisms at the limit of superheating.Physical Review Letters,87(5). |
| MLA | Z. H. Jin,et al."Melting mechanisms at the limit of superheating".Physical Review Letters 87.5(2001). |
入库方式： OAI收割
来源：金属研究所
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