耐高温氧化铝气凝胶隔热复合材料研究进展

彭飞, 姜勇刚, 冯坚, 蔡华飞, 冯军宗, 李良军

Research Progress on Alumina Aerogel Composites for High-temperature Thermal Insulation

PENG Fei, JIANG Yonggang, FENG Jian, CAI Huafei, FENG Junzong, LI Liangjun

图2 高温热处理后的氧化铝-氧化硅气凝胶[39]

Fig. 2 Alumina-silica aerogels after heat-treatment[39] (a) Specific surface areas of aerogels with different molar ratios of Si; (b) TEM photos of the pristine alumina aerogel (AA-1300) and alumina-silica aerogel calcined at 1300 ℃(ASA81-1300); (c) Distribution and atomic ratio of Si and Al in the aerogel with a theoretical Si/Al molar ratio of 0.125:1 (Bars representing 20 nm; the red and green color representing Si and Al, respectively)