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硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (3): 920-929.DOI: 10.16552/j.cnki.issn1001-1625.2025.1139

• 新型功能化玻璃 • 上一篇    下一篇

超声速长波红外窗口用钙镧硫透明陶瓷研究进展

杨曦1(), 赵华1, 刘永华2, 韩滨2, 何坤3, 周念希1, 马仕月2, 韩彤钰2, 周鹏1   

  1. 1.中国建筑材料科学研究总院有限公司,玻璃基功能材料技术创新中心,北京 100024
    2.北京航玻新材料技术有限公司,北京 100024
    3.中建材科创新技术研究院(山东)有限公司,枣庄 277116
  • 收稿日期:2025-11-16 修订日期:2026-01-08 出版日期:2026-03-20 发布日期:2026-04-10
  • 作者简介:杨 曦(1991—),女,博士,工程师。主要从事红外窗口用透明陶瓷方面的研究。E-mail:yangxibuaa@buaa.edu.cn

Research Progress of Calcium Lanthanum Sulfide Transparent Ceramics for Supersonic Long-Wave Infrared Windows

YANG Xi1(), ZHAO Hua1, LIU Yonghua2, HAN Bin2, HE Kun3, ZHOU Nianxi1, MA Shiyue2, HAN Tongyu2, ZHOU Peng1   

  1. 1.Glass-Based Functional Material Technology Innovation Center,China Building Materials Academy Co. ,Ltd. ,Beijing 100024,China
    2.Beijing Hangbo New Materials Technology Co. ,Ltd. ,Beijing 100024,China
    3.China National Building Materials Science and Technology Innovation Research Institute (Shandong);Co. ,Ltd. ,Zaozhuang 277116,China
  • Received:2025-11-16 Revised:2026-01-08 Published:2026-03-20 Online:2026-04-10

摘要:

红外窗口作为超声速飞行器光电系统的核心部件,其极端服役环境对材料的红外透过性、热稳定性和机械强度提出了严苛要求。钙镧硫(CaLa2S4)透明陶瓷凭借宽红外透射波段(8~12 μm)、优异抗雨蚀性及力学性能,成为继氧化物陶瓷、氟化物、ZnS/ZnSe等传统红外材料后的新兴候选材料。本文首先阐述了CaLa2S4陶瓷拥有优异性能的原因,然后重点综述了国内外红外透明陶瓷CaLa2S4在粉体制备、烧结工艺及成分设计方面的研究进展,分析了热压烧结、放电等离子烧结和热等静压烧结等制备工艺对红外透明陶瓷CaLa2S4光学性能和力学性能的影响,并深入探讨了CaLa2S4陶瓷烧结过程中的硫损失问题。然而,相较国际先进水平,我国在CaLa2S4陶瓷大尺寸构件近净成形、高温硫挥发控制等方面仍存在差距。未来需集中攻克高透过率CaLa2S4透明陶瓷的规模化制备、热-力-光性能协同优化及极端环境服役验证等难题,推动CaLa2S4陶瓷在超声速飞行器领域的工程化应用。

关键词: CaLa2S4, 红外窗口材料, 透明陶瓷, 陶瓷制备工艺, 光学质量

Abstract:

Infrared windows are critical components for supersonic aircraft optoelectronics systems, demanding exceptional infrared transmittance, thermal stability, and mechanical strength in extreme environments. Calcium lanthanum sulfide (CaLa2S4) transparent ceramics have emerged as a leading candidate beyond conventional materials such as oxide ceramics, fluorides, ZnS/ZnSe, due to their broad-band transmission (8~12 μm), excellent rain erosion resistance, and mechanical robustness. This paper first elaborates on the origins of the excellent properties of CaLa2S4 ceramics, then focuses on reviewing the research progress in powder synthesis, sintering processes, and composition design of CaLa2S4 infrared transparent ceramics worldwide. It specifically analyzes the effects of fabrication processes including hot pressing (HP) sintering, spark plasma sintering (SPS), and hot isostatic pressing (HIP) sintering on the optical and mechanical properties of CaLa2S4 infrared transparent ceramics. In addition, the sulfur loss issue during the sintering of CaLa2S4 ceramics is thoroughly discussed. However, challenges remain in China regarding near-net shaping of large components, controlling sulfur volatilization at high temperatures, and understanding defect dynamics. Future research must prioritize scalable production of high-transparency CaLa2S4, synergistic optimization of thermal-mechanical-optical properties, and validation under extreme conditions to enable their engineering application in supersonic flight.

Key words: CaLa2S4, infrared window material, transparent ceramics, ceramic fabrication process, optical quality

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