MICROWAVE-ASSISTED PREPARATION AND SINTERING OF MULLITE AND MULLITE-ZIRCONIA COMPOSITES FROM METAL ORGANICS

Authors
RAVI BG PRAVEEN V SELVAM MP RAO KJ
Citation
Bg. Ravi et al., MICROWAVE-ASSISTED PREPARATION AND SINTERING OF MULLITE AND MULLITE-ZIRCONIA COMPOSITES FROM METAL ORGANICS, Materials research bulletin, 33(10), 1998, pp. 1527-1536
Citations number
32
Categorie Soggetti
Material Science
Journal title
Materials research bulletin → ACNP
ISSN journal
00255408
Volume
33
Issue
10
Year of publication
1998
Pages
1527 - 1536
Database
ISI
SICI code
0025-5408(1998)33:10<1527:MPASOM>2.0.ZU;2-D
Abstract
Decomposition characteristics of a mixture of aluminum-tri-sec butoxid e (ASB) and tetraethyl orthosilicate (TEOS) in ethyl acetate solution by microwave pyrolysis was examined. The decomposed product was used a s a second-stage precursor in the preparation of pure mullite (3Al(2)O (3). 2SiO(2)). Mullite-zirconia composites were obtained, using the ab ove mixture along with zirconium-iso-propoxide as starting materials. Pellets of mullite and mullite-zirconia composites were sintered in a microwave oven using beta-SiC as a secondary heater. (C) 1998 Elsevier Science Ltd.