Evidence of Normal to Anti Ferroelectric Phase Transition of PLZT Transparent Ceramics of Different Zr/Ti Ratio

Abstract:

The lanthanum-modified lead zirconate titanate transparent ceramics with different Zr/Ti ratio were prepared by the hot pressing sintering method. A single perovskive structure with a dense microsctructure was obtained and the transgranular fracture of PLZT ceramics tended to be more serious As the Zr/Ti ratio increases, the transmittance of PLZT ceramics tended to be higher and the transgranular fracture became more serious. The P-E loops changed froe a square hysteresis loop to a double tending slim hysteresis loop. Besides,the S-E loops changed from a approximate parabolic shape to a butterfly shape. These two loops confirm the transition from normal ferroelectric to anti ferroelectric phase occured with the Zr/Ti ratio increasing.

• Periodical: Key Engineering Materials (Volume 697)
• Pages: 223-226
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.697.223
• Online since: July 2016
• Authors: Bin Xia, Xi Yun He*, Da Zhi Sun, Wen Xiu Cheng, Ping Sun Qiu, Xia Zeng
• Keywords: Ferroelectricity, Perovskite, PLZT, Transparent Ceramics

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