DEVELOPMENT OF SI-B-C-N CERAMICS SUPPORTED BY PHASE-DIAGRAMS AND THERMOCHEMISTRY

Authors
SEIFERT HJ LUKAS HL ALDINGER F
Citation
Hj. Seifert et al., DEVELOPMENT OF SI-B-C-N CERAMICS SUPPORTED BY PHASE-DIAGRAMS AND THERMOCHEMISTRY, Berichte der Bunsengesellschaft fur Physikalische Chemie, 102(9), 1998, pp. 1309-1313
Citations number
16
Categorie Soggetti
Chemistry Physical
Journal title
Berichte der Bunsengesellschaft fur Physikalische Chemie
ISSN journal
00059021 → ACNP
Volume
102
Issue
9
Year of publication
1998
Pages
1309 - 1313
Database
ISI
SICI code
0005-9021(1998)102:9<1309:DOSCSB>2.0.ZU;2-N
Abstract
To explain the crystallization behaviour and phase relationships of pr ecursor derived Si-B-C-N ceramics, ln(pN(2))-T diagrams were calculate d. The results can be used to optimize the chemical composition and th e physico-chemical conditions for heat treatment. Stabilization of spe cific phase assemblages requires careful adjustment of the N-2 partial pressure during heating and cooling. The high thermal stability of si licoboron carbonitrides can be explained by their particular microstru cture and the resulting stabilization of Si3N4.