Grain-boundary migration in nonstoichiometric solid solutions of magnesium aluminate spinel

Journal Article · Wed Feb 01 04:00:00 EST 1989 · J. Am. Ceram. Soc.; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1989.tb06113.x· OSTI ID:6051583

Chiang, Y M; Kingery, W D

The grain-boundary mobility in magnesium aluminate spinel of magnesia-rich and alumina-rich compositions has been measured from normal grain growth in dense, hot-pressed samples. Over the temperature range 1200/sup 0/ to 1800/sup 0/C, the mobility in magnesia-rich compositions is found to be greater than that in alumina-rich compositions by a factor of 10/sup 2/ to 10/sup 3/.

• Research Organization: 9501197
• OSTI ID: 6051583
• Journal Information: J. Am. Ceram. Soc.; (United States), Journal Name: J. Am. Ceram. Soc.; (United States) Vol. 72:2; 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
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
CRYSTAL STRUCTURE
FABRICATION
GRAIN BOUNDARIES
HOT PRESSING
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MATERIALS WORKING
MICROSTRUCTURE
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PRESSING
SAMPLING
SPINELS