Fine ceramics (advanced ceramics, advanced technical ceramics) � Test method for determining thermal expansion coefficient and residual stress of CVD ceramic coatings

2020 ◽  
Keyword(s):  
Residual Stress ◽  
Thermal Expansion ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Ceramic Coatings ◽  
Test Method ◽  
Advanced Ceramics ◽  
Technical Ceramics ◽  
Fine Ceramics

Evaluating Thermal Expansion Coefficient of SiC Coatings by Relative Method

2017 ◽  
Vol 726 ◽  
pp. 110-114
Author(s):  
Rui Na Pan ◽  
Chen Guang Wei ◽  
Yi Wang Bao ◽  
De Tian Wan ◽  
Yan Ping Wang
Keyword(s):  
Thermal Expansion ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Ceramic Coatings ◽  
Test Method ◽  
Experimental Results ◽  
Simple Test ◽  
Relative Method ◽  
Novel Method ◽  
Sic Coatings

A simple test approach named relative method is developed for determining the thermal expansion coefficient of ceramic coatings. Although ceramic coatings are hardly separated from the substrates, it was evaluated in this work simply by need only the measured thermal expansion coefficient of coated samples and substrates. This novel method was demonstrated to be valid for rectangular beam samples of two types of coating configurations: sandwich coating and around coating. The feasibility of this test method was confirmed by experimental results of SiC coating.

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