Journal of Inorganic Materials ›› 2023, Vol. 38 ›› Issue (12): 1483-1484.DOI: 10.15541/jim20230374

Special Issue: 【信息功能】透明陶瓷与闪烁晶体(202409)

• SCI-TECH DEVELOPMENT • Previous Articles    

Metre-scale Y3Al5O12 (YAG) Transparent Ceramics by Vacuum Reactive Sintering

WANG Dewen1,2(), WANG Junping1,2, YUAN Houcheng3,4(), LIU Zhang3,4, ZHOU Jin3,4, DENG Jiajie1,2, WANG Xin1,2, WU Benhua3,4, ZHANG Jian1,2(), WANG Shiwei1,2   

  1. 1. State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China
    2. Transparent Ceramics Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China
    3. Jiangsu Tie Mao Technology Co., Ltd, Haian 226602, China
    4. Jiangsu Key Lab of High Performance Transparent Protective New Materials, Haian 226602, China
  • Received:2023-08-16 Revised:2023-09-14 Published:2023-10-07 Online:2023-10-07
  • Contact: ZHANG Jian, professor. E-mail: jianzhang@mail.sic.ac.cn;
    YUAN Houcheng, engineer. E-mail: yuanhoucheng@tiemao.cn
  • About author:WANG Dewen (1990-), male, engineer. E-mail: wangdewen@mail.sic.ac.cn
  • Supported by:
    National Natural Science Foundation of China(52130207);Unveiling and Hanging Project of Nantong(JB2022001)

Abstract:

Transparent ceramic materials have excellent strength, hardness and optical properties, which have important application prospect in light-weight transparent protective armor. However, the preparation of transparent ceramic components with large protection area and high transmittance properties is the main challenge to achieve application. In this work, large-size yttrium aluminum garnet (Y3Al5O12, abbreviated as YAG) transparent ceramics with low deformation and excellent optical quality were fabricated by reactive sintering in vacuum using domestic high-purity Al2O3 and Y2O3 powders as starting materials, and the key technologies including dry pressing, calcining, high-temperature vacuum sintering and optical performance were broken through. In addition, as the upgrading of molding and sintering equipment, the dimension of YAG transparent ceramic was enlarged to 1040 mm×810 mm×15 mm, laying a substantial foundation for future applications.

Key words: YAG, large size, reaction sintering, transparent ceramic

CLC Number: