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硅酸盐通报 ›› 2025, Vol. 44 ›› Issue (2): 732-745.DOI: 10.16552/j.cnki.issn1001-1625.2024.0930

• 功能材料 • 上一篇    下一篇

Al2O3-SiO2气凝胶及其纤维增强复合材料的研究进展

孙传庆1,2, 汪洋1, 李占峰2, 马魁1, 王蒙蒙2, 刘瑞祥2, 刘福田1   

  1. 1.济南大学材料科学与工程学院,济南 250022;
    2.山东工业陶瓷研究设计院有限公司,淄博 255000
  • 收稿日期:2024-08-09 修订日期:2024-10-10 出版日期:2025-02-15 发布日期:2025-02-28
  • 通信作者: 刘福田,博士,教授。E-mail:mse_liuft@ujn.edu.cn;刘瑞祥,教授级高级工程师。E-mail:cty-420@163.com
  • 作者简介:孙传庆(2002—),男,硕士研究生。主要从事Al2O3-SiO2气凝胶的研究。E-mail:1614489147@qq.com
  • 基金资助:
    山东泰山产业领军人才项目(tscx202306139)

Research Progress on Al2O3-SiO2 Aerogels and Their Fiber-Reinforced Composites

SUN Chuanqing1,2, WANG Yang1, LI Zhanfeng2, MA Kui1, WANG Mengmeng2, LIU Ruixiang2, LIU Futian1   

  1. 1. School of Materials Science and Engineering, University of Jinan, Jinan 250022, China;
    2. Shandong Industrial Ceramic Research and Design Institute Co., Ltd., Zibo 255000, China
  • Received:2024-08-09 Revised:2024-10-10 Published:2025-02-15 Online:2025-02-28

摘要: Al2O3-SiO2气凝胶(ASA)因具有孔隙率高、密度低、比表面积高等特性,耐高温和隔热性能较为突出,在航空航天隔热领域具有广阔的发展前景。然而,ASA的力学性能相对较差和高温下对红外辐射吸收和散热能力较弱等问题,限制了其在高温隔热领域的应用;元素掺杂和纤维增强是目前改进ASA隔热性能和力学性能的常用方法。本文从ASA的制备技术、ASA性能的影响因素、元素或物质掺杂ASA的研究及纤维增强ASA复合材料四个方面进行了综述,并对ASA未来发展方向做出了展望。

关键词: Al2O3-SiO2气凝胶, 元素掺杂, 纤维, 复合材料, 力学性能, 隔热性能

Abstract: The Al2O3-SiO2 aerogel (ASA), due to its high porosity, low density and high specific surface area, exhibits outstanding high-temperature resistance and thermal insulation properties, holding broad development prospects in the field of aerospace thermal insulation. However, the relatively poor mechanical properties of ASA, weak infrared radiation absorption and heat dissipation capabilities at high temperatures limit its application in the field of high-temperature insulation. Element doping and fiber reinforcement are commonly used to improve the thermal insulation and mechanical properties of ASA. This paper provides an overview of ASA preparation techniques, factors affecting ASA properties, research on element or substance doped ASA, and fiber-reinforced ASA composites, while also offering insights into the future development directions of ASA.

Key words: Al2O3-SiO2 aerogel, element doping, fiber, composite, mechanical property, thermal insulation property

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