SiO_2气凝胶-硅酸钙复合纳米孔超级绝热材料导热系数的测定及绝热机理分析  

Tested of Thermal Conductivity Coefficient of Super Thermal Insulation Composite Material with Silica Aerogels and Calcium Silicate and Thermal Analysed of Insulation Mechanism

作　　者：曾令可[1] 曹建新[1,2] 刘世明[1] 刘飞[1,2] 王慧[1] 刘平安[1] 

机构地区：[1]华南理工大学材料学院,广州510640 [2]贵州大学化学工程学院,贵阳550003

出　　处：《材料工程》2009年第S1期27-31,共5页Journal of Materials Engineering

基　　金：国家自然科学基金资助项目(编号50676033);广东省科技攻关项目(2008B010600038);广东省自然科学基金项目(04020035)

摘　　要：通过对材料导热系数机理的分析,采用闪光法测试了SiO2气凝胶、硅酸钙及SiO2气凝胶-硅酸钙复合材料的导热系数,并分析讨论了导热系数的影响因素。The mechanism of thermal conductivity coefficient were analysed.The thermal conductivity coefficient of silica aerogels,calcium silicate,composite material with silica aerogels and calcium silicate were tested with Flash method.And the effect factor of thermal conductivity coefficient were discussed.

关 键 词：复合材料 闪光法 导热系数 绝热机理 

分 类 号：TB383.1[一般工业技术—材料科学与工程]