Effect of Al2O3 on the Phase Stability of Y-Ce-TZP/Al2O3 Composites at Low Temperature

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The mechanical properties and the phase stability in yttria and ceria stabilized zirconia containing 0-20wt% A12O3 during aging in air (300°C) and in water vapor (150°C, 180°C, 200°C and 250°C) are investigated in this paper. It is found that water can greatly accelerate the degradation of Y-Ce-TZP. The addition of Al2O3 to Y-Ce-TZP prevents the low temperature degradation in air. Also Al2O3 particles can restrain the phase transformation of tetragonal to monoclinic in Y-Ce-TZP under water vapor condition when the temperature is below 200°C.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1190-1193

DOI:

10.4028/www.scientific.net/KEM.336-338.1190

Citation:

X. P. Lin et al., "Effect of Al2O3 on the Phase Stability of Y-Ce-TZP/Al2O3 Composites at Low Temperature", Key Engineering Materials, Vols. 336-338, pp. 1190-1193, 2007

Online since:

April 2007

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$35.00

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