High-pressure effect on dislocation density in nanosize diamond crystals

被引：16
作者：
Pantea, C
Gubicza, J
Ungar, T
Voronin, GA
Nam, NH
Zerda, W
机构：
[1] Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA
[2] Eotvos Lorand Univ, Dept Gen Phys, H-1518 Budapest, Hungary
[3] Eotvos Lorand Univ, Dept Solid State Phys, H-1518 Budapest, Hungary
来源：
DIAMOND AND RELATED MATERIALS | 2004年 / 13卷 / 10期
基金：
美国国家科学基金会;
关键词：
high-pressure; dislocation; nano-size diamond; X-ray;
D O I：
10.1016/j.diamond.2004.03.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Diamond nanosize powders were treated at pressures ranging from 2.0 to 8.0 GPa at a constant temperature of 1470 K. X-ray diffraction peak profiles of treated samples were analyzed and provided information on the average crystallite sizes and the density of the dislocations. The population of dislocations increased with applied pressure while the average crystallite size did not change significantly. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：1753 / 1756
页数：4
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