Explanation
The degree to which an object's surface is close to a mirror surface, represented by numbers. The similarity between the surface specular reflection ability of an object and the complete specular reflection ability. A variety of methods (or instruments) can be used to evaluate glossiness. It mainly depends on the illumination of the light source and the angle of observation, and instrument measurement usually uses 20 °, 45 °, 60 °, or 85 ° angle illumination and detection: signal.
Classification
Inorganic non-metallic materials -> Advanced ceramics -> Ceramic properties