Crack healing of alumina according to the added amount of silicon carbide
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Three kinds of Al2O3-composite ceramic were prepared using mixtures of Al2O3, SiC and Y2O3. The Y2O3 was set as constantto 3 wt%, while three concentrations of the silicon carbide were applied (10, 15, and 20 wt%). The crack healing was studiedas functions of the heat-treatment temperature and the amount of SiC. The heat treatment was carried out at 1473, 1573, and1673 K for 1 hr in air. The results show that the corresponding crack-healing ability is superior regardless of the added amountof SiC.
Abstract
Three kinds of Al2O3-composite ceramic were prepared using mixtures of Al2O3, SiC and Y2O3. The Y2O3 was set as constantto 3 wt%, while three concentrations of the silicon carbide were applied (10, 15, and 20 wt%). The crack healing was studiedas functions of the heat-treatment temperature and the amount of SiC. The heat treatment was carried out at 1473, 1573, and1673 K for 1 hr in air. The results show that the corresponding crack-healing ability is superior regardless of the added amountof SiC.
참고문헌 (18)
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