NEUTORN-DIFFRACTION AND X-RAY-DIFFRACTION MEASUREMENTS OF THE BULK MODULUS OF BORON

被引：105

作者：

NELMES, RJ

LOVEDAY, JS

ALLAN, DR

BESSON, JM

HAMEL, G

GRIMA, P

HULL, S

机构：

[1] UNIV PARIS 06,F-75252 PARIS 05,FRANCE

[2] RUTHERFORD APPLETON LAB,ISIS FAC,DIDCOT OX11 0QX,OXON,ENGLAND

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.47.7668

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The bulk modulus of beta-boron has been measured up to 10 GPa by neutron powder diffraction using an opposed-anvil pressure cell. The bulk modulus of alpha-boron has also been measured to 5 GPa by single-crystal x-ray techniques. The values have been determined to be 185(7) GPa for beta-boron and 224(15) GPa for alpha-boron. These values are markedly smaller than those measured for other hard materials, but total-energy calculations for a-boron are in reasonable agreement.

引用

页码：7668 / 7673

页数：6

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