Evaluation of plasma sprayed YSZ thermal barrier coatings with the CMAS deposits infiltration using impedance spectroscopy

作     者：Musharaf Abbas 

作者机构：Key Laboratory of Aerospace Materials & Performance(Ministry of Education)School of Materials Science and EngineeringBeihang Univerisity 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2012年第22卷第1期

页      面：40-47页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：sponsored by the New Century Excellent Talents in University (NCET) National Nature Science Foundation of China (NSFC,nos. 50771009 50731001) 

主　　题：Calcium-magnesium-alumino-silicate Thermal barrier coatings Plasma spray Impedance spectroscopy 

摘      要：The yttria-stabilized zirconia(YSZ) thermal barrier coatings(TBCs) prepared by atmospheric plasma spraying with different heat treatment period at the temperature of 1250 1C were studied in the present *** impedance spectroscopy(EIS) was employed to nondestructively examine the impedance and capacitance behavior of free standing YSZ coatings deposited by plasma spray with CMAS(calcium-magnesium-alumino-silicate) *** circuit was established on the basis of the biomodal structure in *** sintering behavior of the coatings can be reflected by the changes of resistance and capacitance of the *** EIS,the microstructure evolution of the coating with CMAS deposits was discussed in detail.