低维度薄膜传热机理与表征  

Heat-transmission Mechanisms and Characterizing Methods of the Low-dimensional Films

作　　者：蒋迪波[1] 殷明志[1] 彭焕英[1] 李博[1] 

机构地区：[1]西北工业大学理学院,西安710072

出　　处：《材料导报》2011年第11期121-125,共5页Materials Reports

基　　金：航天支撑基金(2009XW110001)

摘　　要：低维度薄膜传热学是建立在微小器件研究基础上的纳米学科分支之一。综述了细微尺度传热的主要方式,着重介绍了对流换热、热传导、热辐射、相变传热、微重力传热;详细阐述了导热系数的表征方式,包括温度传感器法、光声法、显微拉曼散射法、激光泵浦法、温度探测扫描电镜法、动态热线法。最后,分析与评述了国内外研发应用现状。Heat transmission of lower dimensional IllmS Dasecl on DaSlC sclence of micro-device is a new branch of nano-science. The paper summarizes heat transmission model of micro-dimensional sizes, emphasizes on a few main heat transmission model： heat transfer by convection, by conduction, by radiation, by phase transition,and by micro- gravitational force, simultaneously, the characterizing methods of the thermal transmission co-effections included thermal sensor method; photo-acoustic method; micro-Raman scattering spectroscoy; laser optical-pump and probe mea- surement; a scanning thermal microscope （STHM） ; 300 method etc are introduced. The measurement methods of thin film thermal conductivity are analyzed and reviewed finally.

关 键 词：细微尺度传热 微纳米 孔隙率 导热系数 

分 类 号：TK124[动力工程及工程热物理—工程热物理]