Fabrication and microstructure of Al[sub 2]O[sub 3]-SiC-YAG hybrid composites prepared by particulate dispersion

Journal Article · Sun May 01 00:00:00 EDT 1994 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1994.tb05420.x· OSTI ID:7303047

Jang, Byung Koog; Kishi, Teruo ^[1]

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1. Univ. of Tokyo (Japan). Dept. of Material Science

Stable Al[sub 2]O[sub 3]-SiC-YAG hybrid composites were successfully fabricated by reaction of Al[sub 2]O[sub 3] and Y[sub 2]O[sub 3] and incorporation of SiC. The hot-pressed bodies consisted of uniformly dispersed grains of microsized YAG particulates and nanosized SiC particulates in an Al[sub 2]O[sub 3] matrix. Although the grain size of monolithic Al[sub 2]O[sub 3] increases markedly with increased temperature, the grain size of the Al[sub 2]O[sub 3]-SiC-YAG hybrid composites was effectively restrained due to grain-boundary pinning by the particulates.

• OSTI ID: 7303047
• Journal Information: Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 77:5; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
360602 -- Other Materials-- Structure & Phase Studies
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
DATA
DISPERSIONS
EXPERIMENTAL DATA
FABRICATION
FERRITE GARNETS
INFORMATION
MATERIALS
MICROSTRUCTURE
MINERALS
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SILICATE MINERALS
SILICON CARBIDES
SILICON COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS