Ultrahard diamond single crystals from chemical vapor deposition
Ultrahard diamond single crystals from chemical vapor deposition
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DOI：
10.1002/pssa.200409033
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发表时间：
2004-03-01
影响因子：
2
通讯作者：
Hemley, RJ
中科院分区：
文献类型：
--
作者：
Yan, CS;Mao, HK;Hemley, RJ
采用微波等离子体化学气相沉积（CVD）技术，以极高的生长速率制备出宝石级金刚石单晶，并发现其具有优异的力学性能。生长的材料具有极高的断裂韧性，并且通过高压/高温退火处理产生具有异常高的固有硬度的晶体。退火似乎诱导CVD单晶金刚石的一种新的加工硬化。(C)2004 WILEY-VCH Verlag GmbH & Co. KGaA，魏因海姆。
Gem-sized single crystals of diamond have been produced by very high growth rate microwave plasma chemical vapor deposition (CVD) and found to exhibit remarkable mechanical properties. The as-grown material has extremely high fracture toughness, and treatment by high-pressure/high-temperature annealing produces crystals that have exceptionally high intrinsic hardness. The annealing appears to induce a novel work hardening of CVD single-crystal diamond. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.