EQUATION OF STATE OF ALPHA-SI3N4

Authors
KRUGER MB NGUYEN JH LI YM CALDWELL WA MANGHNANI MH JEANLOZ R
Citation
Mb. Kruger et al., EQUATION OF STATE OF ALPHA-SI3N4, Physical review. B, Condensed matter, 55(6), 1997, pp. 3456-3460
Citations number
31
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
55
Issue
6
Year of publication
1997
Pages
3456 - 3460
Database
ISI
SICI code
0163-1829(1997)55:6<3456:EOSOA>2.0.ZU;2-Q
Abstract
X-ray diffraction at high pressures reveals that alpha-Si3N4 is metast able to at least 48 GPa when compressed statically at 295 K, and yield s a zero-pressure bulk modulus of K-0=228.5 (+/-4) GPa, assuming a pre ssure derivative K-0'=4. The compression is nearly isotropic, but with the c direction being slightly more incompressible than the a directi on, in good agreement with theory.