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Measurement of the Phase Composition of Partially Stabilized Zirconia (PSZ) Test Parts by X-Ray Powder Diffraction

Published online by Cambridge University Press:  06 March 2019

R. A. Wewman
R. A. Wewman*
Affiliation:
Analytical Sciences Michigan Applied Science & Technology Laboratories The Dow Chemical Company Midland, Michigan 48667
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Extract

Zirconia(ZrO2) is one of a number of ceramic materials under development both at Dow and other companies for high cost, low-volume applications under severe corrosion/wear conditions. To improve the physical properties of zirconia, much work has been done worldwide in recent years developing partially stabilized zirconia, or PSZ. This is zirconium oxide which has been “stabilized” in the tetragonal form, typically by the addition of calcium or yttrium oxide. The term “partially stabilized” is given to these materials because the proper amount of oxide stabilizer will cause the zirconia to crystallize almost entirely in the tetragonal form under the proper processing conditions. However, the PSZ fabricated part is not completely stabilized, because it will undergo a tetragonal to monoclinic (T → M) phase transformation when subjected to an applied stress.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 33: Thirty-Eighth Annual Conference on Applications of X-ray Analysis, July 31 - August 4, 1989 , 1989 , pp. 467 - 474
Copyright
Copyright © International Centre for Diffraction Data 1989

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