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Thermal Shock Resistance of ZrO2 Fiber/Al2O3 Ceramics

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Abstract:

The physical and mechanical properties of alumina (Al2O3) ceramics by introduction of zirconia (ZrO2) fiber were studied. ZrO2/Al2O3 ceramics at different sintering temperature was investigated by porosity and water absorption measurements, flexual strength and thermal shock resistance analysis. Results showed that Al2O3 ceramics containing 15 wt% ZrO2 fiber with sintering temperature of 1650°C exhibited good mechanical properties and thermal shock resistance. The porosity and water absorption were 7.4% and 0.69%, respectively. The flexual strength was 613 MPa and the thermal shock times reached 29 times. Scanning electron microscope (SEM) was used to analyze the microstructure of Al2O3 ceramics.

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Periodical:

Advanced Materials Research (Volumes 306-307)

Pages:

754-757

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.306-307.754

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Online since:

August 2011

Authors:

Xian Qin Hou, Jian Ye Liu, He Yi Ge

Keywords:

Alumina Ceramics, Flexual Strength, Porosity, Thermal Shock Resistance, Zirconia Fiber

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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