Abstract:

By applying improved fast electric heating techniques, the ultra-high temperature condition of carbon felt-carbon composites (CFCCs) in practice was simulated.
Then its tensile and compressive mechanical properties were measured by Gleebe-1500. The thermal stress resistance (TSR) was afterwards derived from modulus and strength.
The results show that both strength and modulus increase with increasing temperature in a certain range. Further more, tensile properties in XY-direction are better
than that in Z-direction, while compressive properties in Z-direction is better. The TSRs have a little change with temperature, and which in XY-direction are
larger than that in Z-direction.

Key words: carbon felt-carbon composites, ultra-high temperature, mechanical properties, thermal stress resistance