Grain growth in two-phase ceramics: Al/sub 2/O/sub 3/ inclusions in ZrO/sub 2/

Journal Article · Sun Nov 01 04:00:00 EST 1987 · J. Am. Ceram. Soc.; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1987.tb05635.x· OSTI ID:6952822

Lange, F F; Hirlinger, M M

The effect of AI/sub 2/O/sub 3/ inclusions with a greater average size than the average particle size of the major phase powder on grain growth was examined by sintering ZrO/sub 2//AI/sub 2/O/sub 3/ composites at 1400/sup 0/C and then heat-treating at temperatures up to 1700/sup 0/C. Normal grain growth was observed for all conditions. The inclusions appeared to have no effect on grain growth until the ZrO/sub 2/ grain size was --1.5 times the average inclusion size. Grain growth inhibition increased with volume fraction of the AI/sub 2/O/sub 3/ inclusion phase.

• Research Organization: Materials Dept., College of Engineering, Univ. of California, Santa Barbara, CA (US)
• OSTI ID: 6952822
• Journal Information: J. Am. Ceram. Soc.; (United States), Journal Name: J. Am. Ceram. Soc.; (United States) Vol. 70:11; ISSN JACTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CERAMICS
CHALCOGENIDES
CHEMICAL COMPOSITION
CRYSTAL STRUCTURE
FABRICATION
GRAIN GROWTH
GRAIN SIZE
HEAT TREATMENTS
INCLUSIONS
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
POWDERS
SINTERING
SIZE
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENT COMPOUNDS
VERY HIGH TEMPERATURE
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES