Ceramic is hard and resistant to abrasion but it is brittle and propagates cracks readily.
Thermal shock testing ceramics.
Thermal shock testing exposes products to alternating low and high temperatures to accelerate failures caused by temperature cycles or thermal shocks during normal use.
The thermal shock of ceramic materials is influenced by many factors such as strength young s modulus fracture toughness thermal conductivity and thermal expansion coefficient.
Fired ceramic does not withstand thermal shock nearly as well as other materials like steel plastic wood etc.
Thin circular disks are heated up to 1750 k with a tungsten halogen lamp yielding heating rates up to 1200 k s.
The thermal shock and thermal fatigue behaviour of ceramic materials has been determined with a new type of testing system 3.
Practical experience has shown that thermal shock tests do not lead to generally useful test data.