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

Applications:

Coatings; Composite Materials; Joints and Interfaces