LOW-TEMPERATURE SINTERING AND HIGH THERMAL-CONDUCTIVITY OF YLIO2-DOPED AIN CERAMICS

Authors
WATARI K HWANG HJ TORIYAMA M KANZAKI S
Citation
K. Watari et al., LOW-TEMPERATURE SINTERING AND HIGH THERMAL-CONDUCTIVITY OF YLIO2-DOPED AIN CERAMICS, Journal of the American Ceramic Society, 79(7), 1996, pp. 1979-1981
Citations number
23
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of the American Ceramic Society → ACNP
ISSN journal
00027820
Volume
79
Issue
7
Year of publication
1996
Pages
1979 - 1981
Database
ISI
SICI code
0002-7820(1996)79:7<1979:LSAHTO>2.0.ZU;2-Q
Abstract
The present work indicates through thermodynamic considerations that Y LiO2 additive is beneficial for low-temperature sintering of AlN ceram ics. Pressureless sintering of commercially available AlN powders with simultaneous additions of YLiO2 and CaO resulted in materials with hi gh thermal conductivity (170 W . m(-1). K-1 after sintering at 1600 de grees C for 6 h). It is demonstrated that improvement of thermal condu ctivity is possible at low firing temperature by use of sintering aids .