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所属单位：材料科学与技术学院

发表刊物：JOURNAL OF POROUS MATERIALS

关键字：Carbon foam SiO2 aerogel Composite Thermal conductivity

摘要：In this study, carbon foam (CF) and SiO2 aerogel composite were prepared by the sol-gel method under a circumstance of the atmospheric drying process. The Pyrolysis mechanism of carbon foam was investigated through thermal gravimetric analysis and Fourier transform infrared spectroscopy (FTIR). Carbon foam having ultralight properties with a density of 5.44 kg/m(3), functions as a skeleton to support the composite. The maximum compressive stress measured for CF/SiO2 aerogel composite was about 1.0 MPa. At room temperature, the measured thermal conductivities of the CF and CF/SiO2 aerogel composite were 0.035 W/m K and 0.024 W/m K, while at 300 degrees C, it was reported to be 0.120 W/m K and 0.057 W/m K. Aerogel filled in carbon foam cells have significantly reduced the gaseous thermal conductivity of the prepared composite.

ISSN号：1380-2224

是否译文：否

发表时间：2019-10-01

合写作者：Liu, Yang,Zhang, Junxiong,Ai, Sufen,Tang, Hao,唐豪

通讯作者：陈照峰