is the heat transfer coefficient, and is a fracture resistance parameter. The fracture resistance parameter is a common metric used to define the thermal shock tolerance of materials.

The formulas were derived for ceramic materials, and make the assumptions of a homogeneous body with material properties independent of temperature, but can be well applied to other brittle materials.

Testing

Thermal shock testing exposes products to alternating low and high temperatures to accelerate failures caused by temperature cycles

1.Previous
3.Next