Gelcast zirconia-alumina composites

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:6261293

Omatete, O O; Bleier, A; Westmoreland, C G; Young, A C

Near net-shaped parts of zirconia-alumina composites have been successfully formed by gelcasting, a technique which utilizes in situ polymerization of acrylamide monomers. The high solids loading required for gelcasting ({approximately}50 vol %) was obtained by controlling the pH-dependent stability of the aqueous zirconia-alumina suspensions. A strong correspondence was found among the surface charges on the particles, colloidal stability, and the maximum solids loading. 14 refs., 3 figs., 2 tabs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6261293
• Report Number(s): CONF-910162-2; ON: DE91007835
• Resource Relation: Conference: 15. annual conference on composites and advanced ceramics, Cocoa Beach, FL (USA), 13-16 Jan 1991
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
CASTING
GELS
ZIRCONIUM OXIDES
COMPOSITE MATERIALS
GELATION
MONOMERS
PH VALUE
SEDIMENTATION
ALUMINIUM COMPOUNDS
CHALCOGENIDES
COLLOIDS
DISPERSIONS
FABRICATION
MATERIALS
OXIDES
OXYGEN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication