摘要
气凝胶的独特结构使其具有不同于一般材料的热传导方式。给出了气凝胶的固相传导、气相传导以及热辐射的理论公式,并根据理论公式讨论了降低气凝胶热导率的方法,可作为制备超级隔热材料的参考。同时展望了气凝胶作为超级隔热材料的应用和发展方向。
Aerogels have special thermal conduction manners which are different with common materials, because of their unique structures. The theoretic formulas of aerogels including solid conductivity, gas conductivity and radiative conductivity are analysed. According to these formulas, the methods of minimizing thermal conductivity of aerogels are discussed which are the references of preparing super insulation materials. The applications and the development are forecasted.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2005年第12期20-22,共3页
Materials Reports
基金
国家863项目支持(2004AA763020)
关键词
气凝胶
热传导
隔热材料
aerogels, thermal conduction, insulation materials
