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Mechanical properties of Y-PSZ after aging at low temperature

Journal Article · · Int. J. High Tech. Ceram.; (United States)
Y-PSZ (partially-stabilized zirconia) materials containing 2.0, 2.5, 3.0, 4.0, and 5.0 mol-percent of yttrium oxide, which had been prepared by cold isostatic pressing and sintering, hot pressing, orhot isostatic pressing, were aged in air between 200 and 500 C for 500-900 h. The materials were examined to determine their mechanical properties and microstructure. It was confirmed that Y-PSZ containing 2.5-5.0 mol-percent yttrium oxide showed little degradation in strength after 2000 h of aging at 200 C with no changes in monoclinic/tetragonal ratio and density, when the grain size of the sintered material was less than 0.5 micron and the density was greater than 6.07 Mg/cu cm. 20 references.
Research Organization:
Toray Industries, Inc., Otsu, Japan
OSTI ID:
6905185
Journal Information:
Int. J. High Tech. Ceram.; (United States), Journal Name: Int. J. High Tech. Ceram.; (United States) Vol. 2:2; ISSN IJHCE
Country of Publication:
United States
Language:
English