| 热脉冲对铜晶态非晶态转变的影响 |
| |
| 引用本文： | 范韶蓉,倪晓东,张远政.热脉冲对铜晶态非晶态转变的影响[J].北京科技大学学报,2006,28(8):759-761. |
| |
| 作者姓名： | 范韶蓉 倪晓东 张远政 |
| |
| 作者单位： | 北京科技大学应用科学学院,北京,100083 |
| |
| 摘 要： | 采用分子动力学和EAM(embedded atom method)势,模拟研究了热脉冲对金属铜从晶态到非晶态转变的影响.计算结果表明,热脉冲作用下,转变时体系平均温度高于平衡计算熔点,结构转变是过热熔化过程,系统不可能发生从晶态到非晶态非平衡转变.随着热脉冲频率的增大,转变所需热脉冲幅度减小,体系转变过热度降低.
|
| 关 键 词： | 铜 晶态 热脉冲 转变温度 双体分布函数 分子动力学 EAM势 脉冲对 非晶态 态转变 影响 pure transformation pulse thermal 过热度 体系转变 脉冲幅度 脉冲频率 非平衡 发生 系统 熔化过程 结构转变 熔点 平衡计算 温度高 |
| 收稿时间： | 2005-04-26 |
| 修稿时间： | 2005-09-05 |
Influence of thermal pulse on crystalline-to-amorphous transformation of pure Cu |
| |
| FAN Shaorong,NI Xiaodong,ZHANG Yuanzheng.Influence of thermal pulse on crystalline-to-amorphous transformation of pure Cu[J].Journal of University of Science and Technology Beijing,2006,28(8):759-761. |
| |
| Authors: | FAN Shaorong NI Xiaodong ZHANG Yuanzheng |
| |
| Institution: | Applied Science School, University of Science and Technology Beijing, Beijing 100083, China |
| |
| Abstract: | The molecular dynamic simulation and the embedded atom method (EAM) were used to simulate the influence of thermal pulse with different frequencies on the transformation of Cu from crystalline state to non-crystalline state. The results show that the average system temperature is higher than the calculated equilibrium melting point of Cu while the transformation occurs which should be an overheated melting process. It is impossible to transfer the crystalline state into non-crystalline state under thermal pulse. With increasing thermal pulse frequency,the minimum thermal pulse energy and system overheating degree decrease. |
| |
| Keywords: | copper crystalline state thermal pulse transformation temperature pair distribution function molecular dynamics EAM potential |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
