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      Recent development of A 2B 2O 7 system transparent ceramics

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          Abstract

          A 2B 2O 7 system compounds, which usually present three phase structures mainly based on the ionic radius ratios of r A and r B ( r A/ r B), have been studied for potential applications in many fields, such as thermal barrier coatings, luminescence powders, fast-ion conductors, photocatalysts, and matrices for immobilization of highly active radionuclides. Since 2005, La 2Hf 2O 7 was fabricated into transparent ceramics and much more attentions were paid on A 2B 2O 7 transparent ceramics for new applications. In this review, the development of A 2B 2O 7 system transparent ceramics was described. The structure characteristics, powder synthesis method, and sintering techniques of the final A 2B 2O 7 transparent ceramics were summarized. After that, the mostly reported A 2Hf 2O 7, A 2Zr 2O 7, and A 2Ti 2O 7 system transparent ceramics were systematically introduced. The potential application fields and future development trends were also discussed, focusing on scintillators, optical elements, and other luminescent materials.

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          Journal
          Journal of Advanced Ceramics
          Journal of Advanced Ceramics
          Tsinghua University Press (Tsinghua University, Beijing 100084, China )
          2226-4108
          05 December 2018
          : 07
          : 04
          : 289-306 (pp. )
          Affiliations
          aState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
          bKey Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
          Author notes
          Article
          2226-4108-07-04-289
          10.1007/s40145-018-0287-z

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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