ISO 18755:2022 精细陶瓷 （高级陶瓷、高技术陶瓷） 激光反射法测定单片陶瓷热扩散率的方法
标准编号：ISO 18755:2022
中文名称：精细陶瓷 （高级陶瓷、高技术陶瓷） 激光反射法测定单片陶瓷热扩散率的方法
英文名称：Fine ceramics (advanced ceramics, advanced technical ceramics) — Determination of thermal diffusivity of monolithic ceramics by flash method
发布日期：2022-12
标准范围
本文件规定了测定从室温到至少1？700？孔隙率小于？10？%.闪光方法与激光闪光一样，适用于热扩散率值范围为0.1至1的均匀各向同性材料？000？mm2？s-1在大约100？K到2？300？K.附录中描述的方法？G描述了如何在热扩散率测试的基础上估计孔隙率小于10的均质整体陶瓷的比热容和热导率？%.
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 mm2 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 %.
标准预览图
