精细陶瓷（高级陶瓷、高级工业陶瓷）.用闪光法测定整体陶瓷的热扩散率

[中文适用范围]： 本文件规定了通过闪蒸法测定孔隙率小于 10% 的均质整体陶瓷从室温到至少 1700 K 的热扩散率的测试方法。 闪光方法，如激光闪光，适用于在大约 100 K 至 2300 K 的温度范围内热扩散率值范围为 0.1 至 1000 mm2 s-1 的均质各向同性材料。 附录 G 中描述的方法描述了如何估计，在热扩散率测试的基础上，测定孔隙率小于10%的均质整体陶瓷的比热容和导热系数。 [外文原描述]： This document specifies the test method for the determination of thermal diffusivity from room temperature to at least 1 700 K by the flash method for homogeneous monolithic ceramics with porosity less than 10 %. Flash methods, like laser flash, are applicable to homogeneous isotropic materials with thermal diffusivity values ranging from 0,1 to 1 000 mm 2 s -1 within the temperature range from approximately 100 K to 2 300 K. The method described in Annex G describes how to estimate, on the basis of the thermal diffusivity test, the specific heat capacity and the thermal conductivity of homogeneous monolithic ceramics with porosity less than 10 %.