A novel vacuum/oxygen hot press sintering approach for the fabrication of transparent PLZT (7.4/70/30) ceramics

Transparent Lanthanum-modified lead zirconate titanate ceramics (PLZT 7.4/70/30) with low content of excess lead oxide (PbO) were successfully prepared by a novel vacuum/oxygen hot press sintering process. The phase structure, microstructure, electrical properties and electro-optic scattering perfor...

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Bibliographic Details
Published inCeramics international Vol. 47; no. 7; pp. 9620 - 9626
Main Authors Cheng, Haijun, He, Xiyun, Zeng, Xia, Ling, Liang, Qiu, Pingsun, Sun, Dazhi
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.04.2021
Subjects
Dielectric properties
Electro-optic scattering
Ferroelectric properties
PLZT
Transmittance
PLZT
Ferroelectric properties
Transmittance
Dielectric properties
Electro-optic scattering
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Summary:Transparent Lanthanum-modified lead zirconate titanate ceramics (PLZT 7.4/70/30) with low content of excess lead oxide (PbO) were successfully prepared by a novel vacuum/oxygen hot press sintering process. The phase structure, microstructure, electrical properties and electro-optic scattering performance of PLZT ceramics as a function of excess PbO in the starting powders have been studied and analyzed. As a result, these ceramics exhibited an ultra-high optical transmittance (>69.4% at 1064 nm; thickness 1 mm) from visible to near-infrared wavelength. Herein, we significantly reduce the use of PbO as an auxiliary agent for sintering. This puts forward a good route to meet the objectives of environmental protection and sustainable development.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2020.12.100