精细陶瓷(高级陶瓷、高级工业陶瓷).用坑状磨削法测定涂层厚度

[中文适用范围]： 本国际标准规定了一种通过凹坑研磨法测定陶瓷涂层厚度的方法，该方法包括研磨球形凹坑并对凹坑进行随后的显微检查。由于凹坑尺寸测量引入的不确定性，该测试不适用于涂层和/或基材表面粗糙度超过涂层厚度 20% 的情况。注：使用接触探针轮廓仪测量厚度的替代方法见 ISO 18452。 [外文原描述]： ISO 26423:2009 specifies a method for the determination of the thickness of ceramic coatings by a crater grinding method, which includes the grinding of a spherical cavity and subsequent microscopic examination of the crater. Because of the uncertainty introduced into the measurement of crater dimensions, the test is not suitable for use where the surface roughness of the coating and/or substrate exceeds 20 % of the coating thickness.