Synthesis and design of superhard materials

被引：1420

作者：

Haines, J ^{[1
]}

Léger, JM ^{[1
]}

Bocquillon, G ^{[1
]}

机构：

[1] CNRS, Lab Phys Chim Mat, F-92190 Meudon, France

来源：

ANNUAL REVIEW OF MATERIALS RESEARCH | 2001年 / 31卷

关键词：

diamond; cubic boron nitride; carbon nitride; high pressure; stishovite;

D O I：

10.1146/annurev.matsci.31.1.1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The synthesis of the two currently used superhard materials, diamond and cubic boron nitride, is briefly described with indications of the factors influencing the quality of the crystals obtained. The physics of hardness is discussed and the importance of covalent bonding and fixed atomic positions in the crystal structure, which determine high hardness values, is outlined. The materials investigated to date are described and new potentially superhard materials are presented. No material that is thermodynamically stable under ambient conditions and composed of light (small) atoms will have a hardness greater than that of diamond. Materials with hardness values similar to that of cubic boron nitride (cBN) can be obtained. However, increasing the capabilities of the high-pressure devices could lead to the production of better quality cBN compacts without binders.

引用

页码：1 / 23

页数：23

共 72 条

[1] SPECIAL FEATURES IN SYNTHESIZING DIAMOND CRYSTALS OF INCREASED FRIABILITY [J].