Microstructure and Properties of Plasma Sprayed Lead Zirconate Titanate (PZT) Ceramics

Coatings

Pavel Ctibor²  Zdenek Pala²  Hanna Boldyryeva²  Josef Sedláპk¹ 

[1] Department of Electrotechnology, Faculty of Electrical Engineering, Czech Technical University, Technická 2, 166 27, Praha 6, Czech Republic;Institute of Plasma Physics ASCR, Za Slovankou 3, 182 00, Praha 8, Czech Republic;

关键词: plasma spraying;    electroceramics;    PZT;    phase composition;    permittivity;   

DOI  :  10.3390/coatings2020064

来源: mdpi

【 摘 要 】

Lead zirconate titanate (PZT) was plasma sprayed onto various substrates of different character. Additionally, a free-standing body made by plasma spraying was investigated. X-ray diffraction analyses of a decomposition of the as-sprayed coating products detected components of the PT-PZ system as well as binary oxides—PbO and ZrO₂. Due to the comparatively complex phase character, the Curie temperature monitored by DTA, had a smeared appearance without pronounced maxima. The corresponding electrical properties are comparable with those typically observed for CaTiO₃, but are worse than the normal values of bulk PZT due to defective stoichiometry.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.