A thermal shock test for porcelain-metal systems.
Certain conclusions may be made on the basis of this study. 1) The effects of alloy, porcelain, and alloy-porcelain interaction on the temperature differential required to induce porcelain crazing are significant. 2) The effect of porcelain is the most significant determinant of delta T values. 3) Under thermal shock conditions, the crazing resistance of porcelains decreases in the order: V less than [C, N, W] greater than B, where C greater than W. 4) For the conditions used, the thermal shock test is a sensitive discriminator of the crazing resistance of porcelain-metal systems.
D003722:Dental Alloys / Q000592:standards*; D003776:Dental Porcelain / Q000592:standards*; D013499:Surface Properties; D013816:Thermodynamics
D003722:Dental Alloys; D003776:Dental Porcelain