Powder preparation and sintering of grain growth controlled Cr{sub 2}O{sub 3}-ZrO{sub 2} composites

Conference · Sat Dec 31 00:00:00 EST 1994

OSTI ID:96554

Chen, Y I; Li, J J ^[1]; Tsai, M S ^[2]

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1. Industrial Technology Research Institute, Hsinchu (Taiwan, Province of China)
2. National Cheng Kung Univ., Tainan (Taiwan, Province of China); and others

Zirconia is introduced in Cr{sub 2}O{sub 3} to inhibit the abnormal grain growth of Cr{sub 2}O{sub 3} during densification. The constituents of ceramic powders are mixed by ball milling and coprecipitating, respectively. Both normal sintering and hot press sintering are performed in non-oxidizing atmosphere. An average grain size of 2-3 {mu}m is obtained in normal sintering and an average grain size below 1.5{mu}m with >99.5% theoretical density in hot press sintering. Mechanical properties of the composite are evaluated.

• OSTI ID: 96554
• Report Number(s): CONF-940416-; TRN: 95:005316-0035
• Resource Relation: Conference: 96. annual meeting of the American Ceramic Society (ACS), Indianapolis, IN (United States), 25-28 Apr 1994; Other Information: PBD: 1994; Related Information: Is Part Of Ceramic transactions: Advances in ceramic-matrix composites II. Volume 46; Singh, J.P.; Bansal, N.P. [eds.]; PB: 1065 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM OXIDES
MECHANICAL PROPERTIES
MICROSTRUCTURE
ZIRCONIUM OXIDES
GRAIN GROWTH
SINTERING
GRAIN SIZE
POROSITY