| Ag纳米线过热的热力学模型 |
| |
| 引用本文： | 石端文,何良明.Ag纳米线过热的热力学模型[J].海南师范学院学报,2007,20(4):335-338. |
| |
| 作者姓名： | 石端文 何良明 |
| |
| 作者单位： | [1]海南师范大学物理系,海南海口571158 [2]广西民族大学物理与电子工程学院,广西南宁530006 |
| |
| 基金项目： | 海南省自然科学基金项目（50740）;海南师范大学博士科研启动基金资助项目（37120158） |
| |
| 摘 要： | 对Ag纳米线的熔化和过热作了研究，提出了一种经典热力学模型对Ag纳米线的过热机制作了阐述；当考虑到低能Ag／Ni界面的作用时，推导了过热的定量表达式，说明了过热与纳米线的半径和界面能有密切关系．
|
| 关 键 词： | 纳米线 熔化 过热 |
| 文章编号： | 1671-8747（2007）04-0335-04 |
| 收稿时间： | 2007-08-18 |
Thermodynamic model of superheating in Ag nanowires |
| |
| Authors: | Shi Duanwen He Liangming |
| |
| Abstract: | In this paper, a classical thermodynamic model was given to describe the superheating of Ni-coated Ag nanowires. The nucleation and growth of meh phase are both suppressed by the low energy Ag/Ni interfaces in coated Ag wires. The suppression of meh growth is critical and plays a major role in the process of melting. The thermodynamic analysis gives a quantitative relation of superheating with the wire radius R and the contact angle 0. The superheating of coated wires increases with decreasing R of Ag wire. The result of the thermodynamic model was consistent with previous work of MD simulations. |
| |
| Keywords: | nanowires mehing superheating |
| 本文献已被 维普 等数据库收录！ |
