Impurity diffusion and microstructure in diamonds deformed at high pressures and temperatures

被引：27

作者：

Shiryaev, A. A.

Frost, D. J.

Langenhorst, F.

机构：

[1] Inst Crystallog, Moscow 119333, Russia

[2] Univ Bayreuth, Bayer Geoinst, D-95440 Bayreuth, Germany

[3] Univ Jena, Inst Geowissenschaft, D-07749 Jena, Germany

来源：

关键词：

diamond crystal; diffusion; defect characterization; deformation;

D O I：

10.1016/j.diamond.2006.10.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Results of a comprehensive study of the influence of deformation at high-pressure and high-temperature conditions on diamond microstructure and nitrogen diffusion are presented. Selection of the pressure medium allows the introduction of different types of extended defects (dislocations, mechanical twins). Despite clear differences in microstructure of diamonds deformed in variable pressure mediums, the relationship between the deformation and the rate of aggregation of the C to A nitrogen defects is still not clear. In some cases the deformation apparently increases the aggregation rate; in others no effect or even a decrease in the conversion rate was observed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：503 / 511

页数：9

共 44 条

[1] Stress effects on defects and dopant diffusion in Si [J].