抗热应力破坏性是材料抵抗由于瞬时温度剧烈变化,温度梯度很大或热物理性能不匹配所生热应力引起破坏的能力,是材料的一项重要性能。炭/炭复合材料大多在高温下工作,如战略导弹的鼻锥、火箭发动机的喷管喉衬等炭/炭复合材料构件,工作温度都在摄氏几千度,瞬 Resistance to thermal stress Destruction is the material’s ability to resist damage caused by thermal stresses due to rapid changes in instantaneous temperature, large temperature gradients, or thermal physical incompatibility, an important property of the material. Most carbon / carbon composites work at high temperatures, such as the nose cone of a strategic missile, the rocket engine nozzle throat liner and other carbon / carbon composite components, operating temperatures are in the Celsius thousands of degrees, the instant