The graphitization process and the synthesis of diamonds from a C-Ni-Mn system

被引：10
|
作者：
Skury, ALD [1 ]
Bobrovnitchii, GS [1 ]
Monteiro, SN [1 ]
机构：
[1] No State Univ Rio Janeiro UENF, BR-28015620 Campos, RJ, Brazil
来源：
CARBON | 2004年 / 42卷 / 12-13期
关键词：
diamond; heat treatment; high pressure; X-ray diffraction;
D O I：
10.1016/j.carbon.2004.02.014
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The influence of the "degree of graphitization" on the synthesis of diamond obtained from a HP-HT process using an anvil type high pressure device was studied for different types of graphites. The "degree of graphitization" was measured by a new parameter the percentage of hexagonal perfection (PHP). Results have shown that for samples with a PHP below 50% no diamond was formed. This suggested that a minimum "degree of graphitization" must be present for a successful HP-HT for diamond synthesis. (C) 2004 Published by Elsevier Ltd.
引用
收藏
页码：2369 / 2373
页数：5
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