Thin circular disks are heated up to 1750 k with a tungsten halogen lamp yielding heating rates up to 1200 k s.
Thermal shock testing ceramics.
Fired ceramic does not withstand thermal shock nearly as well as other materials like steel plastic wood etc.
The thermal shock fracture behavior of ceramics has been investigated using traditional testing methods such as the water quench in which the critical temperature difference where samples are.
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.
Ceramic is hard and resistant to abrasion but it is brittle and propagates cracks readily.
The transition between temperature extremes occurs very rapidly greater than 15 c per minute.
The thermal shock and thermal fatigue behaviour of ceramic materials has been determined with a new type of testing system 3.