摘要:根据Al2O3-SiO2复合气凝胶制备工艺的先后顺序,分别综述了Al2O3-SiO2复合醇凝胶制备过程中所涉及的金属醇盐法和金属无机盐法,以及复合醇凝胶干燥过程中所使用的超临界干燥工艺和常压干燥工艺的研究现状,并重点对比了各方法或工艺的优缺点,提出了以金属无机盐法并结合常压干燥工艺来制备Al2O3-SiO2复合气凝胶的新思路。
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