Please wait a minute...
兴发pt登录学报, 2019, 36(3): 101-104     https://doi.org/10.16039/j.cnki.cn22-1249.2019.03.021
  本期目录 | 过刊浏览 | 高级检索 |
硬质材料二硼化钼硬度机理的研究
宋乐乐,王常春
兴发pt登录 理学院
Exploring the Hardness Mechanism of Hard Material MoB2
SONG Lele, WANG Changchun
下载:  PDF (2894KB) 
输出:  BibTeX | EndNote (RIS)      
摘要 

过渡金属硼化物(TMBs)一直被认为是潜在的超硬材料,而现已合成的过渡金属硼化物却没有表现出超硬特性。为了解释现已合成的TMBs都没有表现出超硬特性的原因和探究TMBs的硬度机理。本篇文章以二硼化钼作为研究对象,通过理论计算和已有数据的对比发现,钼原子和硼原子之间的化学键表现出了很强的离子特性。正是由于这一特性决定了二硼化钼只能作为硬质材料而不能成为超硬材料。此项研究对理解TMBs的硬度机理以及设计新型的超硬材料具有重要的意义。

服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
宋乐乐
王常春
关键词:  过渡金属硼化物  超硬材料  硬度机理  第一性原理     
Abstract: 

Transition metal borides (TMBs) have long been considered as potential superhard materials. But the TMBs, which has been synthesized, do not exhibit superhard properties. In order to explain the reason why the synthesized TMBs do not exhibit superhard properties and to explore the hardness mechanism of TMBs, In this paper, molybdenum diboride is considered as the material for exploring the hardness mechanism. Through comparing the theoretical calculation and the existing data, we found that the chemical bonds formed between Mo and B atoms possess ionic character in MoB2 which leads to it can only be a hard material. Our results are helpful to understand the hardness mechanism and design superhard materials in TMBs.

Key words:  transition metal boride    superhard material    hardness mechanism    first principes
               出版日期:  2019-03-25      发布日期:  2019-03-25      整期出版日期:  2019-03-25
ZTFLH:  O469  
引用本文:    
宋乐乐, 王常春. 硬质材料二硼化钼硬度机理的研究 [J]. 兴发pt登录学报, 2019, 36(3): 101-104.
SONG Lele, WANG Changchun. Exploring the Hardness Mechanism of Hard Material MoB2 . Journal of Jilin Institute of Chemical Technology, 2019, 36(3): 101-104.
链接本文:  
http://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2019.03.021  或          http://xuebao.jlict.edu.cn/CN/Y2019/V36/I3/101
[1] 张圣诗, 滕达, 张磊, 刘军伟. CaCu3Ti3.95Zr0.05O12陶瓷的介电性质研究 [J]. 兴发pt登录学报, 2019, 36(3): 82-87.
[2] 王文钧, 赵文静, 徐中坚, 刘军伟. CaCu3Ti4O12陶瓷的高温介电弛豫研究 [J]. 兴发pt登录学报, 2019, 36(3): 88-91.
[1] WANG Ya-hong, JIA Ying-chao. Optimization for Soxhlet Extraction of Total Flavonoids from Eggplant Root by Using Response Surface Methodology[J]. Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 1 -6 .
[2] PAN Hong-wei, ZHOU Hong-li. Research Progress on Extraction Technology and Component Analysis of Volatile Flavor Compounds in Plants[J]. Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 7 -10 .
[3] ZHOU Zhen-qiang, WANG Kai-bao, CHEN Yu-tian, HAN Ji, HOU Dai-bing, GUO Wen-qi. Analysis of the Design and Dynamic Characteristics of Recyclable Garbage Crushing Device[J]. Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 31 -35 .
[4] ZHU Qi-rui, ZHANG Yu-feng, LI Yang-xin, WU Dong-jun, BI Shuai-nan, ZHOU Rui-jie, YOU Sai-sai. The Structural Design and Parameter Analysis of the Chair Structure of Quadriplegia of Cerebral Palsy[J]. Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 40 -44 .
[5] ZHANG Yun-peng. Preparation and Characterization of Er3+Y3+Yb3+ Co-doped Al2O3 Luminescence Materials[J]. Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 58 -63 .
[6] MI Ya-wei. Proof of the Manifold of n Manifold[J]. Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 64 -66 .
[7] XU You-zhuan, ZHOU Hou-qing. The Lower Bounds of Energy for Some Circulant Graph[J]. Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 67 -72 .
[8] ZHOU Hong-li, ZHANG Yang, CUI Hao, XUE Jian-fei. Primary Exploration of the Applied Pharmaceutical Talents Training in Ordinary Engineering Colleges Based on Social Needs and R ecruitment Drives[J]. Journal of Jilin Institute of Chemical Technology, 2018, 35(2): 1 -4 .
[9] YANG Xiu-dong, WANG Ya-hong, ZHANG Pin-mei, YANG Yan-jun, CUI Hao, ZHOU Hong-li. Discussion on the Practice Teaching Reform of Pharmaceutical Engineering Based on Engineering Education Professional Accreditation[J]. Journal of Jilin Institute of Chemical Technology, 2018, 35(2): 5 -7 .
[10] LI Long, WANG Xue-mei. Research on Higher Education Assessment Mode Based on Formative Evaluation and Information Entropy Theory[J]. Journal of Jilin Institute of Chemical Technology, 2018, 35(2): 8 -12 .
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed