Microstructure characterization and properties of porous piezoceramics  

作　　者：N.A.Shvetsova I.A.Shvetsov M.A.Lugovaya E.I.Petrova A.N.Rybyanets 

机构地区：[1]Southern Federal University,No.194 Stachky Ave,Rostov-on-Don 344090,Russia

出　　处：《Journal of Advanced Dielectrics》2022年第2期25-28,共4页先进电介质学报（英文）

基　　金：The study was financially supported by the Ministry of Science and Higher Education of the Russian Federation[State task in the field of scientific activity,Scientific Project No.0852-2020-0032(BAS0110/20-3-08IF)].

摘　　要：In this paper,a comprehensive study of microstructure/properties interrelations for porous piezoceramics based on PZT composition was performed.Experimental samples of porous piezoceramics were fabricated using a modified method of burningout a pore former.Porosity dependencies of elastic,dielectric,piezoelectric and electromechanical coefficients of the porous ceramics in the relative porosity range 0-50%were obtained and analyzed.As a result of microstructure analysis,it was found that at any connectivity type(3-0,3-3)and porosity up to 50%the real structures of porous piezoceramics were close to the matrix medium structure with continuous piezoceramic skeleton.It was also revealed that the microstructural features of porous piezoceramics define the character of the dependences of the dielectric,piezoelectric and electromechanical properties of porous piezoelectric ceramics on porosity.In conclusion,microstructure/properties interrelations,as well as new applications of porous piezoceramics were discussed.

关 键 词：Porous piezoceramics MICROSTRUCTURE piezoceramic skeleton electromechanical properties 

分 类 号：TQ174.1[化学工程—陶瓷工业]