H. Awaji et al., THERMAL-SHOCK PARAMETERS OF CERAMICS EVALUATED BY INFRARED RADIATION HEATING, JSME international journal. Series A, Solid mechanics and material engineering, 40(4), 1997, pp. 414-422
An infrared radiation (IR) heating method was used to evaluate thermal
shock parameters (thermal shock strength and thermal shock fracture t
oughness) of float glass and alumina. This technique makes it possible
to evaluate the parameters directly from the electric power of the IR
heater. In this paper we discuss how the pertinent thermal shock para
meters should be estimated both as physical properties of a material a
nd as a function of temperature. The stress intensity factors for a di
sk with an edge crack were analyzed numerically under a thermal shock
loading. The thermal shock parameters in both ambient and elevated-tem
perature environments were measured by the IR heating technique and th
e results were compared with predicted values, which combined such tem
perature-dependent properties of the material as Young's modulus, ther
mal conductivity, linear thermal expansion, and tensile strength or fr
acture toughness.