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The status quo of Research on Thermal Stress within Thermal Barrier Coating

Fan Bing1,Zhang Jin2,Yi Shuping1(1. College of Mechanical Engineering, Chongqing University, Chongqing 400044,China;2.School of Material Science and Engineering, Chongqing Institute of Technology, Chongqing 400050,China)  
This paper introduces the present situation of the study of thermal barrier coatings and its main failure form, and describes the formation of thermal stress influencing the lifetime of coatings and the countermeasures to solve the problem. By means of finite element method, the paper studies the thermal stress of coatings caused by the inconsistency of thermal expansion coefficients between the coatings and the base materials under the condition of thermo-impact.
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