Fabrication of high strength oxide ceramic composites
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Date
1989-08
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Journal ISSN
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Publisher
Trans Tech Publications
Abstract
Yttria partially stabilised zirconia (Y-PSZ), alumina, mullite, Y-PSZ-AIZO3, alumina-zirconia and mullite-zirconia powders were prepared through the hydroxide precipitation technique. The experimental conditions during precipitation were manipulated to produce homogeneous and I reactive powders. The formation of chemically bonded strong agglomerates was suppressed by dispersing the powders in alcohol.
The powders could be densified conventionally to near theoretical values without sintering aids. The sintering bodies had very uniform microstructures and good mechanical properties. The fracture strength of Y-PSZ, alumina, mullite and Y-PSZ-N203 after HIPing was over 1550, 625, 350, and 2000 MPa respectively. Zirconia dispersion significantly improved the strength of alumina and mullite.
Description
Physical copy of journal held by ANSTO Library at DDC: 666/47.
Conference name also called "2nd International Ceramic Conference and Exhibition" on preface.
Keywords
Fabrication, Oxides, Ceramics, Zirconium, Powders, Mechanical properties, Fracture properties, Mullite
Citation
Rajendran, S., & Rossell, H. J. (1989). Fabrication of high strength oxide ceramic composites. Presentation to the International Ceramic Conference (AUSTCERAM 90: ceramics technology - sharing the knowledge), Perth, Western Australia, 26-31 August 1990. In Journal of the Australian Ceramic Society, 25(2), 74.