| 像管光电阴极制造的可行性的化学热力学分析 |
| |
| 引用本文： | 朱炳林.像管光电阴极制造的可行性的化学热力学分析[J].光学技术,1997(6). |
| |
| 作者姓名： | 朱炳林 |
| |
| 作者单位： | 北京理工大学化工与材料学院 |
| |
| 摘 要： | 用碱金属氯化物与金属钙的置换反应来制备碱金属光电阴极，在通常条件下是不能自发进行的。在真空条件下（１．３３×１０－４～１．３３×１０－５Ｐａ），由计算得知碱金属已呈气态，经化学热力学原理论证，在某一温度下是可以自发进行的，即置换出Ｎａ，Ｋ，Ｒｂ，Ｃｓ的最低温度必须分别高于９９２．４℃、８９６．７℃、８４５．９℃和８７９．８℃。
|
| 关 键 词： | 化学热力学，Gibbs函数，置换，碱金属 |
Possibility of the chemical thermodynamics of manufacture imaging tube photoelectric cathode |
| |
| Zhu Binglin.Possibility of the chemical thermodynamics of manufacture imaging tube photoelectric cathode[J].Optical Technique,1997(6). |
| |
| Authors: | Zhu Binglin |
| |
| Abstract: | Generally,the spontaneous displacement reaction of alkali metals with calcium is impossible. However, under the condition of vacuum and specific temperature, alkali metals is gaseous state, and the chemical thermodynamis principle demonstrates that the displacement reaction is spontaneous. In conclusion, the lowest temperature, which manufacture K、Na、Rb、Cs by displacement reaction is 992.4℃、896.7℃、845.9℃、879.8℃ respectively. |
| |
| Keywords: | chemical thermodynamics Gibbs function displacement alkali metal |
| 本文献已被 CNKI 等数据库收录！ |
