The contact angle of liquid Ag with solid W and its temperature dependance were examined by sessile drop method under various atmospheres,e.g.vacuum,Ar,H_2 and carcked NH_3.The O_2 partial pressure in the atmosphere is found to be the major factor. An obvious improvement on the wettability may be made by a trace amount of Ni,Cu or Ce added to liquid Ag,The contact angle near M.P.is then narrowed from 69 to about 10—20 deg.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%