College of Mechanical and Control Engineering&College of Materials Science and Engineering;
Guilin University of Technology;
Guilin 541004;
China;
Institute of Fluid Engineering Equipment;
Jiangsu Industrial Technology Research Institute;
Jiangsu University;
Zhenjiang 212013;
China;
Key Laboratory for RF Circuits and Systems;
Ministry of Education&Key Laboratory of Large Scale Integrated Design;
Hangzhou Dianzi University;
Hangzhou 310018;
China;
ceramic; crystal structure; dielectric spectroscopy; oxygen vacancies;