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Effect of TiN and Al2O3 on the Low Temperature Degradation of 3Y-TZP

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Abstract:

The composite materials, 3Y-TZP added with TiN or/and Al2O3 particles, were fabricated by hot-pressing techniques. The effect of TiN and Al2O3 on the low temperature degradation of 3Y-TZP was investigated. It is shown that both TiN and Al2O3 can inhibit t-m transformation of 3Y-TZP and prevent the transformation from propagating into the specimen interiors when aged at a low temperature. The inhibition to the low temperature degradation of 3Y-TZP by Al2O3 is more sensitive to the aged temperature than by TiN. Compared with Al2O3, TiN is more available to inhibit t-m transformation on aged surfaces. The degradation resistance of 3Y-TZP codoped by TiN and Al2O3 is stronger than that of 3Y-TZP dispersed only by TiN or Al2O3.

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Periodical:

Materials Science Forum (Volumes 532-533)

Pages:

281-284

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.532-533.281

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Online since:

December 2006

Authors:

Jing Sun, Chuan Zhen Huang, Jun Wang, Han Lian Liu, Bing Qiang Liu

Keywords:

3Y-TZP, Al2O3, Low Temperature Degradation, Phase Transformation, Titanium Nitride TiN

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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