Equation of state of alpha-Si3N4

被引：51

作者：

Kruger, MB

Nguyen, JH

Li, YM

Caldwell, WA

Manghnani, MH

Jeanloz, R

机构：

[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720

[2] UNIV CALIF BERKELEY,DEPT GEOL & GEOPHYS,BERKELEY,CA 94720

[3] UNIV HAWAII MANOA,SCH OCEAN & EARTH SCI & TECHNOL,HONOLULU,HI 96822

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.55.3456

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

X-ray diffraction at high pressures reveals that alpha-Si3N4 is metastable to at least 48 GPa when compressed statically at 295 K, and yields a zero-pressure bulk modulus of K-0=228.5 (+/-4) GPa, assuming a pressure derivative K-0'=4. The compression is nearly isotropic, but with the c direction being slightly more incompressible than the a direction, in good agreement with theory.

引用

页码：3456 / 3460

页数：5

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