Research progress on sol-gel method for preparing Al2O3-SiO2 aerogels and composites

doi:10.3969/j.issn.1001-1935.2025.02.011

Abstract

Abstract: The research progress on various sol-gel processes for preparing Al₂O₃-SiO₂ aerogels in recent years was reviewed.The influence of drying methods and Al/Si molar ratios on the thermal stability of the aerogels under extremely high temperatures,as well as the doping strategy of the reinforcing phase in composite materials were deeply analyzed.The future development directions were prospected.

Key words: Al₂O₃-SiO₂ aerogels, high-temperature thermal stability, sol-gel method, high-temperature phase transformation, composite reinforcement

摘要： 综述了近年来采用溶胶-凝胶法制备Al₂O₃-SiO₂气凝胶的多种工艺研究进展,深入分析气凝胶的干燥方法和Al、Si物质的量比对气凝胶在极端高温下热稳定性的影响,以及复合材料中增强相的掺杂策略,并对未来发展方向进行展望。

关键词: Al₂O₃-SiO₂气凝胶, 高温热稳定性, 溶胶-凝胶法, 高温相变, 复合增强

CLC Number:

TQ427.26

Zhang Huangshuai, Zhu Zhenting, Yang Zihao, Chen Zhe, Ma Yu, Zhang Hang. Research progress on sol-gel method for preparing Al₂O₃-SiO₂ aerogels and composites[J]. Refractories, 2025, 59(2): 149-154.

张皇帅, 朱震庭, 杨子豪, 陈哲, 马毓, 张航. 溶胶-凝胶法制备Al₂O₃-SiO₂气凝胶及其复合材料的研究进展[J]. 耐火材料, 2025, 59(2): 149-154.

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Research progress on sol-gel method for preparing Al₂O₃-SiO₂ aerogels and composites

溶胶-凝胶法制备Al₂O₃-SiO₂气凝胶及其复合材料的研究进展

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