Thermo-Chemical Polishing of Large Area CVD Diamond Films
-
摘要: 研制成功國內第1臺大面積CVD金剛石膜熱鐵板拋光機.它可以在10-3Pa真空條件下,加熱到1 100℃;拋光臺可以在0~10 r/min間實現無級調速,一次完成3片φ110 mm的金剛石膜的拋光.金剛石膜在980℃,2 h拋光的結果表明該裝置有良好的拋光效果.金剛石膜在980℃拋光不同時間的Raman譜表明,金剛石熱鐵板拋光是金剛石石墨化和C原子不斷擴散的過程.Abstract: The first domestic thermo-chemical polishing apparatus is setup. Three φl10 mm in diameter diamond films can be polished simultaneously at 10-3Pa from 750℃ to 100℃, with the polishing rate increasing with increasing temperature. The results of polishing at 980℃ showed that polishing of CVD diamond films is very efficient. Thermo-chemical polishing mechanism is based on the transformation of diamond into graphite and the atomic dissolution of carbon into a hot metal.
-
Key words:
- CVD diamond films /
- thermo-chemical polishing /
- graphite /
- diffusion
-

計量
- 文章訪問數: 158
- HTML全文瀏覽量: 21
- PDF下載量: 9
- 被引次數: 0