A novel vacuum/oxygen hot press sintering approach for the fabrication of transparent PLZT (7.4/70/30) ceramics. Issue 7 (1st April 2021)

• Record Type: Journal Article
• Authors: Cheng, Haijun; He, Xiyun; Zeng, Xia; Ling, Liang; Qiu, Pingsun; Sun, Dazhi
• Is Part Of: Ceramics international. Volume 47:Issue 7(2021)Part A
• Page Start: 9620
• Page End: 9626
• Publication Date: 2021-04-01
• Subjects: PLZT -- Transmittance -- Electro-optic scattering -- Dielectric properties -- Ferroelectric properties; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2020.12.100
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: 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.