Application of electrokinetic properties of the fabrication of an alumina-zirconia composite

Journal Article · Fri Jul 01 00:00:00 EDT 1988 · Advanced Ceramic Materials; (USA)

DOI:https://doi.org/10.1111/j.1551-2916.1988.tb00245.x· OSTI ID:6109339

DeLiso, E M; Kowalski, J; Cannon, W R ^[1]

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1. Rutgers, The State Univ. of New Jersey, Piscataway (USA)

Mechanisms to stabilize mixed-oxide suspensions of Al{sub 2}O{sub 3} and ZrO{sub 2} (2 mol% Y{sub 2}O{sub 3}) were studied. The addition of a polyelectrolyte, ammonium polyacrylate, as a stabilizing agent was explored by evaluating the electrokinetic properties of electrophoretic mobility, sedimentation, and rheology. Highly viscous suspensions resulted when small amounts of polyelectrolyte were added to the ZrO{sub 2} (2 mol% Y{sub 2}O{sub 3}) suspensions. For these low-concentration-polyelectrolyte ZrO{sub 2} suspensions, a high zeta potential was calculated, suggesting that the experimental data most likely follow an electrostatic path model. To prepare mixed-oxide suspensions of Al{sub 2}O{sub 3} and ZrO{sub 2} (2 mol% Y{sub 2}O{sub 3}), it was necessary to adjust the pH of the polyelectrolyte-containing suspensions to a region where the ZrO{sub 2} (2 mol% Y{sub 2}O{sub 3}) was stable.

• OSTI ID: 6109339
• Journal Information: Advanced Ceramic Materials; (USA), Vol. 3:4; ISSN 0883-5551
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
FABRICATION
ZIRCONIUM OXIDES
COMPOSITE MATERIALS
ELECTROLYTES
EXPERIMENTAL DATA
MEASURING METHODS
RHEOLOGY
ALUMINIUM COMPOUNDS
CHALCOGENIDES
DATA
INFORMATION
MATERIALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication