Densification and grain growth of porous alumina compacts

Journal Article · Thu Dec 01 04:00:00 EST 1994 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1994.tb04561.x· OSTI ID:6607545

Kwon, Y S; Son, G; Suh, J; Kim, K T ^[1]

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1. Pohang Univ. of Science and Technology (Korea, Republic of). Dept. of Mechanical Engineering

Densification and grain growth of porous alumina compacts during various high-temperature processes were investigated. Experimental data were obtained for densification and grain growth of alumina powder during hot pressing. A set of constitutive equations was proposed based on the constitutive equations by Helle et al. for hydrostatic response and by Rahaman et al. for deviatoric response. Theoretical results from the proposed constitutive equations were compared with various experimental data for alumina power compacts in the literature, including pressureless sintering, sinter forging, and hot pressing. The proposed model well predicts the densification and grain growth of alumina compacts.

• OSTI ID: 6607545
• Journal Information: Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 77:12; ISSN 0002-7820; ISSN JACTAW
• 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
BULK DENSITY
CHALCOGENIDES
DATA
DENSITY
EXPERIMENTAL DATA
FABRICATION
GRAIN GROWTH
HOT PRESSING
IMPURITIES
INFORMATION
MATERIALS WORKING
MATHEMATICAL MODELS
MICROSTRUCTURE
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRESSING
TEMPERATURE RANGE
TEMPERATURE RANGE 1000-4000 K