This document specifies the principles of thermal expansion coefficient and residual stress testing of CVD ceramic coatings (thickness >0.03mm) at room temperature, and specifies the instruments and equipment required for the test, sample requirements, test steps, data calculation and test report Writing rules etc. This document applies to CVD ceramic coatings on metal or ceramic substrates. This test method can be used in material performance research, quality control, characterization, and data collection.
T/CSTM 00440-2023 history
2023T/CSTM 00440-2023 Test method for determining thermal expansion coefficient and residual stress of CVD ceramic coatings