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C-190 Communications of the American Ceramic Society October 1983 Uniformity of Al2O3-2rO2Compositesby
 

Summary: C-190 Communications of the American Ceramic Society October 1983
Uniformity of Al2O3-2rO2Compositesby
Colloidal Filtration
I. A. AKSAY*
Department of Materials Science and Engineering, College of Engineering,
University of Washington, Seattle, Washington 98195
F. F. LANGE*AND B. I. DAVIS
Rockwell International Science Center, Thousand Oaks, California 91360
Dispersion states of aqueous composite A1203/ZrOz colloidal suspensions were
studied by measuring particle size distribution as a function of pH. Mutual dis-
persion was achieved at pH values of 2.0 to 3.5.Consolidated compositesformed
by colloidal filtration reflected the uniformity of the colloidal state. The mean
flexural strength (896MPa) of the sintered compacts was 1.6 times that of bodies
consolidated by isostatic pressing.
INTRODUCTION
P Swork has shown that agglom-
erates in a consolidated powder system
shrink away from their surrounding powder
matrix during sintering to produce crack-
like voids responsible for fracture. ',' Since

  

Source: Aksay, Ilhan A. - Department of Chemical Engineering, Princeton University

 

Collections: Materials Science