Advances on strategies for searching for next generation thermal barrier coating materials

查看全文 作　　者：Bin [1]Liu;Yuchen [1]Liu;Changhua [1]Zhu;Huimin [2]Xiang;Hongfei [1]Chen;Luchao [3]Sun;Yanfeng [1]Gao;Yanchun [2]Zhou

机构地区：[1]School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China;[2]Science and Technology on Advanced Functional Composite Laboratory, Aerospace Research Institute of Material & Processing Technology, Beijing, 100076, China;[3]High-performance Ceramics Division, Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China

出　　处：《Journal of Materials Science & Technology》索引2019年第35卷第5期,共19页

基　　金：supported by the National Natural Science Foundation of China (No. 51602188);the Program for Professor of Special Appointment (Eastern Scholar);by Shanghai Municipal Education Commission (No. TP2015040) 摘　　要：Thermal barrier coating(TBC) materials play important roles in gas turbine engines to protect the Nibased super-alloys from the high temperature airflow damage. High melting point, ultra-low thermal conductivity, large thermal expansion coefficient, excellent damage tolerance and moderate mechanical properties are the main requirements of promising TBC materials. In order to improve the efficiency of jet and/or gas turbine engines, which is the key of improved thrust-to-weight ratios and the energysaving, significant efforts have been made on searching for enhanced TBC materials. Theoretically, density functional theory has been successfully used in scanning the structure and properties of materials, and at the same time predicting the mechanical and thermal properties of promising TBC materials for high and ultrahigh temperature applications, which are validated by subsequent experiments. Experimentally,doping and/or alloying are also widely applied to further decrease their thermal conductivities. Now, the strategy through combining theoretical calculations and experiments on searching for next generation thermal insulator materials is widely adopted. In this review, the common used techniques and the recent advantages on searching for promising TBC materials in both theory and experiments are summarized. 关键词：THERMAL BARRIER coatings Oxide First PRINCIPLES calculation THERMAL PROPERTIES Mechanical PROPERTIES

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Advances on strategies for searching for next generation thermal barrier coating materials

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