Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Aluminum-silicon-yttrium ternary aerogel composite material and preparation method thereof
The invention discloses a preparation method of an aluminum-silicon-yttrium ternary aerogel composite material and the aluminum-silicon-yttrium ternary aerogel composite material prepared by the method. The preparation method of the aluminum-silicon-yttrium ternary aerogel composite material comprises the following steps: carrying out sol impregnation on a support body to obtain an impregnated support body; wherein the sol comprises silica sol and aluminum-yttrium sol; carrying out gelation treatment on the impregnated support body, so as to obtain a composite aluminum-yttrium-silica gel support body; and the composite aluminum-yttrium-silica gel supporting body is aged and dried, and the aluminum-silicon-yttrium ternary aerogel composite material is obtained. The prepared aluminum-silicon-yttrium ternary aerogel composite material has high-temperature stability, the heat conductivity at the temperature of 1200 DEG C is smaller than or equal to 0.105 W/m.k, and the volume shrinkage rate after heat treatment at the temperature of 1200 DEG C for 30 min is 4%-8% of the original volume.
本发明公开了一种铝‑硅‑钇三元气凝胶复合材料的制备方法以及所述方法制备得到的铝‑硅‑钇三元气凝胶复合材料；铝‑硅‑钇三元气凝胶复合材料的制备方法包括以下步骤：对支撑体进行溶胶浸渍，得到浸渍后的支撑体；其中，所述溶胶包括硅溶胶和铝‑钇溶胶；对浸渍后的所述支撑体进行凝胶化处理，得到复合铝‑钇‑硅凝胶支撑体；将所述复合铝‑钇‑硅凝胶支撑体进行老化、干燥，得到所述铝‑硅‑钇三元气凝胶复合材料。实现制得的铝‑硅‑钇三元气凝胶复合材料具有高温稳定性，在1200℃的热导率≤0.105W/m·k，1200℃热处理30min后体积收缩率为原体积的4‑8％。
Aluminum-silicon-yttrium ternary aerogel composite material and preparation method thereof
The invention discloses a preparation method of an aluminum-silicon-yttrium ternary aerogel composite material and the aluminum-silicon-yttrium ternary aerogel composite material prepared by the method. The preparation method of the aluminum-silicon-yttrium ternary aerogel composite material comprises the following steps: carrying out sol impregnation on a support body to obtain an impregnated support body; wherein the sol comprises silica sol and aluminum-yttrium sol; carrying out gelation treatment on the impregnated support body, so as to obtain a composite aluminum-yttrium-silica gel support body; and the composite aluminum-yttrium-silica gel supporting body is aged and dried, and the aluminum-silicon-yttrium ternary aerogel composite material is obtained. The prepared aluminum-silicon-yttrium ternary aerogel composite material has high-temperature stability, the heat conductivity at the temperature of 1200 DEG C is smaller than or equal to 0.105 W/m.k, and the volume shrinkage rate after heat treatment at the temperature of 1200 DEG C for 30 min is 4%-8% of the original volume.
本发明公开了一种铝‑硅‑钇三元气凝胶复合材料的制备方法以及所述方法制备得到的铝‑硅‑钇三元气凝胶复合材料；铝‑硅‑钇三元气凝胶复合材料的制备方法包括以下步骤：对支撑体进行溶胶浸渍，得到浸渍后的支撑体；其中，所述溶胶包括硅溶胶和铝‑钇溶胶；对浸渍后的所述支撑体进行凝胶化处理，得到复合铝‑钇‑硅凝胶支撑体；将所述复合铝‑钇‑硅凝胶支撑体进行老化、干燥，得到所述铝‑硅‑钇三元气凝胶复合材料。实现制得的铝‑硅‑钇三元气凝胶复合材料具有高温稳定性，在1200℃的热导率≤0.105W/m·k，1200℃热处理30min后体积收缩率为原体积的4‑8％。
Aluminum-silicon-yttrium ternary aerogel composite material and preparation method thereof
一种铝-硅-钇三元气凝胶复合材料及其制备方法
SUI XUEYE (Autor:in) / XU JIE (Autor:in) / LI ZHANFENG (Autor:in) / TANG WENZHE (Autor:in) / WANG MENGMENG (Autor:in) / DUAN XIAOFENG (Autor:in) / ZHOU CHANGLING (Autor:in) / LIU RUIXIANG (Autor:in)
23.02.2024
Patent
Elektronische Ressource
Chinesisch
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