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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.

          Author and article information

          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
          [1] aState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
          [2] 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
          650bdb41-28c8-4b2f-92e0-8f955020ea18

          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/

          History
          : 11 June 2018
          : 19 June 2018
          Categories
          Review

          Materials technology,Materials properties,Materials characterization,Composites,Ceramics
          powder synthesis,A2B2O7 system transparent ceramics,sintering,potential applications

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