Thermal Shock Resistance of ZrO2 Fiber/Al2O3 Ceramics
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.
Shiquan Liu and Min Zuo
X. Q. Hou et al., "Thermal Shock Resistance of ZrO2 Fiber/Al2O3 Ceramics", Advanced Materials Research, Vols. 306-307, pp. 754-757, 2011