中国物理B ›› 2016, Vol. 25 ›› Issue (7): 76103-076103.doi: 10.1088/1674-1056/25/7/076103

所属专题: TOPICAL REVIEW — High pressure physics

• TOPICAL REVIEW—High pressure physics • 上一篇    下一篇

Theoretical design of diamondlike superhard structures at high pressure

Quan Li(李全), Wei-Tao Zheng(郑伟涛)   

  1. Department of Materials Science, Key Laboratory of Automobile Materials of MOE and State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
  • 收稿日期:2015-08-20 修回日期:2015-09-04 出版日期:2016-07-05 发布日期:2016-07-05
  • 通讯作者: Quan Li E-mail:liquan777@jlu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 51202084, 11474125, and 51372095).

Theoretical design of diamondlike superhard structures at high pressure

Quan Li(李全), Wei-Tao Zheng(郑伟涛)   

  1. Department of Materials Science, Key Laboratory of Automobile Materials of MOE and State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
  • Received:2015-08-20 Revised:2015-09-04 Online:2016-07-05 Published:2016-07-05
  • Contact: Quan Li E-mail:liquan777@jlu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 51202084, 11474125, and 51372095).

摘要:

Diamond, as the hardest known material, has been widely used in industrial applications as abrasives, coatings, and cutting and polishing tools, but it is restricted by several shortcomings, e.g., its low thermal and chemical stability. Considerable efforts have been devoted to designing or synthesizing the diamond-like B-C-N-O compounds, which exhibit excellent mechanical property. In this paper, we review the recent theoretical design of diamond-like superhard structures at high pressure. In particular, the recently designed high symmetric phase of low-energy cubic BC3 meets the experimental observation, and clarifies the actual existence of cubic symmetric phase for the compounds formed by B-C-N-O system, besides the classical example of cubic boron nitride.

关键词: crystal structures, high pressure, superhard materials

Abstract:

Diamond, as the hardest known material, has been widely used in industrial applications as abrasives, coatings, and cutting and polishing tools, but it is restricted by several shortcomings, e.g., its low thermal and chemical stability. Considerable efforts have been devoted to designing or synthesizing the diamond-like B-C-N-O compounds, which exhibit excellent mechanical property. In this paper, we review the recent theoretical design of diamond-like superhard structures at high pressure. In particular, the recently designed high symmetric phase of low-energy cubic BC3 meets the experimental observation, and clarifies the actual existence of cubic symmetric phase for the compounds formed by B-C-N-O system, besides the classical example of cubic boron nitride.

Key words: crystal structures, high pressure, superhard materials

中图分类号:  (Structure of bulk crystals)

  • 61.50.-f
62.20.-x (Mechanical properties of solids) 71.20.-b (Electron density of states and band structure of crystalline solids) 61.50.Ks (Crystallographic aspects of phase transformations; pressure effects)