DEVITRIFICATION OF THE GRAIN-BOUNDARY GLASSY PHASE IN A HIGH-ALUMINA CERAMIC SUBSTRATE

Authors
POWELLDOGAN CA HEUER AH OBRYAN HM
Citation
Ca. Powelldogan et al., DEVITRIFICATION OF THE GRAIN-BOUNDARY GLASSY PHASE IN A HIGH-ALUMINA CERAMIC SUBSTRATE, Journal of the American Ceramic Society, 77(10), 1994, pp. 2593-2598
Citations number
14
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of the American Ceramic Society → ACNP
ISSN journal
00027820
Volume
77
Issue
10
Year of publication
1994
Pages
2593 - 2598
Database
ISI
SICI code
0002-7820(1994)77:10<2593:DOTGGP>2.0.ZU;2-K
Abstract
Devitrification of the (Na, Mg, Ca) aluminosilicate glass phase in a h igh-alumina (>99%) ceramic substrate has been studied by TEM. MgAl2O4 (spinel) and a Ca-rich plagioclase (a solid solution between CaAl2Si2O 8 (anorthite) and NaAlSi3O8 (albite)) are the dominant crystalline pha ses. Significant spatial variability exists both in the extent of crys tallization and in the glass composition.