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| 用表面生长CVD金刚石的石墨合成高压金刚石 | |
| 引用本文： | 金曾孙 吕宪义. 用表面生长CVD金刚石的石墨合成高压金刚石[J]. 高压物理学报, 1994, 8(1): 65-68 |
| 作者姓名： | 金曾孙 吕宪义 |
| 作者单位： | 吉林大学超硬材料国家重点实验室 |
| 摘 要： | 用热灯丝CVD方法在多晶石墨衬底表面制备CVD金刚石颗粒，并用这种石墨在高温高压条件下采用六面顶压机合成出高压金刚石。初步实验结果表明：采用其表面生长CVD金刚石颗粒的石墨合成高压金刚石，可以提高金刚石的转化率和降低合成压力。 |
| 关 键 词： | 高压金刚石 石墨 CVD金刚石 转化率 合成压力 |
| 收稿时间： | 1993-10-12; |
SYNTHESIS OF HIGH-PRESSURE DIAMOND USING GRAPHITEOVER WHICH CVD DIAMOND GRAINS WERE GROWN |
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| Jin Zengsun,Lu Xianyi,Zhang Tiechcn,Zou Guangtian. SYNTHESIS OF HIGH-PRESSURE DIAMOND USING GRAPHITEOVER WHICH CVD DIAMOND GRAINS WERE GROWN[J]. Chinese Journal of High Pressure Physics, 1994, 8(1): 65-68 | |
| Authors: | Jin Zengsun Lu Xianyi Zhang Tiechcn Zou Guangtian |
| Affiliation: | State Key Laboratory of Superhard Materials, Jilin University, Changchun 130023, China |
| Abstract: | CVD diamond grains have been grown on polycrystalline graphite pieces by the hot-filament CVD method using mixtures of methane and hydrogen, and high-pressure diamond was synthesized by 6×6 MN (6×600 t) cubic high pressure apparatus using CVD diamond-grown graphite. The experimental results show that growth features of CVD diamond on the polycrystalline graphite substrate depended largely on the total pressure when other conditions were same, growth of CVD diamond grains on the graphite pieces used as starting material is a possible way of increasing transformation rate of graphite to diamond and of lowering the synthesis pressure at the synthesis of high-pressure diamond. |
| Keywords: | CVD diamond high-pressure diamond graphite. |
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