COMPOSITIONAL DESIGN OF ALPHA'-BETA'-YAG (Y3AL5O12) MULTIPHASE SIALONCERAMICS

Authors
WANG PL TU HY WANG H SUN WY YAN DS
Citation
Pl. Wang et al., COMPOSITIONAL DESIGN OF ALPHA'-BETA'-YAG (Y3AL5O12) MULTIPHASE SIALONCERAMICS, Materials letters, 28(4-6), 1996, pp. 373-378
Citations number
11
Categorie Soggetti
Material Science","Physics, Applied
Journal title
Materials letters → ACNP
ISSN journal
0167577X
Volume
28
Issue
4-6
Year of publication
1996
Pages
373 - 378
Database
ISI
SICI code
0167-577X(1996)28:4-6<373:CDOA(M>2.0.ZU;2-J
Abstract
The sinterabilities of alpha'-beta'-YAG (Y3Al5O12) multiphase sialon c eramics in the alpha'-beta(0) (beta-Si3N4)-beta(10) (beta-sialon, z=0. 8)-YAG phase compatibility region of the Y, Si, Al/O, N system have be en studied with the aid of computerised factor analysis method, which is one of the most powerful techniques in chemometrics, using the comp ositions of materials as the characteristic parameters. One of the opt imized compositions has been fabricated via gas pressure sintering and the results are encouraging for obtaining materials with a combinatio n of high strength, fracture toughness and hardness and retention of h igh temperature strength up to 1350 degrees C.