Non-metallic catalysts for diamond synthesis under high pressure and high temperature

被引：0

作者：

Sun, LL ^{[1
]}

Wu, Q ^{[1
]}

Dai, DY ^{[1
]}

Zhang, J ^{[1
]}

Qin, ZC ^{[1
]}

Wang, WK ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

来源：

SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY | 1999年 / 42卷 / 08期

基金：

中国国家自然科学基金;

关键词：

non-metallic catalyst; diamond synthesis; transformation probability; high pressure and high temperature;

D O I：

10.1007/BF02884270

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

Recent results on conversion from graphite to diamond by aid of non-metallic catalysts are reviewed. The current status of experimental advances is presented and typical examples from relevant literature ore provided for understanding the mechanism of the graphite-diamond conversion by aid of these non-metallic catalysts. Furthermore, a tendency of graphite-diamond transformation assisted by carbonates, sulfates or phosphorus under high pressure and high temperature has been investigated by calculating the activation energy and transformation probability of the carbon atoms over a potential barrier. It was found that the activation energy is highly sensitive to the catalyst chosen. The probability sequence of graphite-diamond transformation with these catalysts was put forward.

引用

页码：834 / 841

页数：8

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