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Compressive Strength and Phase Transformation of Zirconia Porous Ceramics at Different Sintering Temperatures

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Abstract:

A series of zirconia porous ceramics with different density are fabricated with commercial zirconia powder and zirconia hollow balls by pressureless sintering technology. The microstructure and phase transformation are characterized respectively by SEM and XRD testing methods. The result indicates that the density and compressive strength depend greatly on zirconia powder content at the same sintering temperature, and elevating sintering temperature just has a little effect on the density and compressive strength for the samples of the same zirconia powder content. The XRD diffraction patterns analysis shows that elevating sintering temperature is helpful to eliminate monoclinic zirconia and the best sintering temperature should be beyond 1700°C.

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Periodical:

Key Engineering Materials (Volume 351)

Pages:

180-183

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.351.180

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Online since:

October 2007

Authors:

Chang Lian Chen, Qiang Shen, Jun Guo Li, Lian Meng Zhang

Keywords:

Hollow Balls Compressive Strength, Phase Transformation, Porous Ceramics, Zirconia

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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