Factors Affecting Thermal Stress Resistance
of Ceramic Materials
Susceptibility of ceramic materials to thermal stresses has been recognized for a long time. More than one hundred years ago equations for thermal stresses are arising from temperature gradients in a cylinder were derived by Duhamel (1838).‘ Since that time, about thirty papers have appeared which mainly consider the calculation of thermal stresses in an infinite cylinder subjected to temperature gradients. It is apparent that thermal stresses are not a new or uninvestigated phenomenon.
New attempts have been made to define and to measure a material property which can be called “resistance to thermal stresses.” Although these attempts have not been completely successful in a quantitative way, they have led to a much improved understanding of the factors that contribute to thermal stress resistance. It is the purpose of the present paper to consider these factors and their effect on thermal stress resistance.