AAC offers two types of thermal shock test:
Cryogenic Thermal Shock Test
The samples are quickly transferred into a liquid nitrogen bath at -196 °C. The cooling rate depends on the samples; at the surface, rates of up to 70 K/s are achieved.
After the samples are thoroughly cooled, they are moved upwards into streaming air; the air temperature ranges from ambient to +600 °C.
Reference thermocouples are mounted at the samples for constantly monitoring their temperature and to adopt the heating/cooling times accordingly.
Automated operation allows testing of 100 cycles within one working day.
Typical test parameters:
Lower temperature: -196 °C
Cooling rate at surface: up to 100 K/sec (for thin samples)
Upper temperature: 300 °C
Heating rate at surface: up to 60 K/sec (for thin samples)
Time for 100 cycles: ~6h
Coatings; Composite Materials; Joints and Interfaces