Gelcast zirconia-alumina composites

Conference · Tue Jan 01 04:00:00 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
• Country of Publication: United States
• Language: English

Related Subjects

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