精细陶瓷（高级陶瓷、高级工业陶瓷）.陶瓷复合材料的热物理性能.用闪光法测定一维热扩散率

[中文适用范围]： 本文件描述了测定连续纤维增强陶瓷基复合材料热扩散率的闪蒸法。 为了符合一维传热假设，定义实验条件以使材料表现均匀。 这涉及在复合材料的一个对称轴上执行测试。 该方法适用于测量过程中物理和化学稳定的材料，覆盖温度范围为100 K至2800 K。 适合测量10−4 m2∙s−1范围内的热扩散率值。 至 10−7 m2∙s−1。 [外文原描述]： This document describes the flash method for the determination of thermal diffusivity of ceramic matrix composites with continuous fibre reinforcement. In order to conform with the unidimensional heat transfer hypothesis, the experimental conditions are defined such that the material behaves in a homogeneous manner. This involves performing tests in one symmetry axis of the composite. The method is applicable to materials which are physically and chemically stable during the measurement, and covers the range of temperature from 100 K to 2 800 K. It is suitable for the measurement of thermal diffusivity values in the range 10 −4 m 2 ∙s −1 to 10 −7 m 2 ∙s −1 .