The effective thermal conductivity of three-dimensional reticulated foam materials

被引：37
|
作者：
Xu, Weigang [1 ]
Zhang, Hongtao [1 ]
Yang, Zhenming [1 ]
Zhang, Jinsong [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
来源：
JOURNAL OF POROUS MATERIALS | 2009年 / 16卷 / 01期
关键词：
Porous media; Effective thermal conductivity; Experimental investigation; FEM analysis; POROSITY;
D O I：
10.1007/s10934-007-9169-4
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In this paper, the effective thermal conductivity k (eff) of three-dimensional (3D) reticulated SiC foams were investigated through experimental and numerical methods. The results showed that the k (eff) of SiC foams increases as the volume fraction f increases from 30% to 50%. However, there are no systematic changes detected in k (eff) when the cell size of the foam varies at a fixed volume fraction. The k (eff) of SiC foams as a function of f was obtained. Compared the experimental results with the calculated ones, it indicated that the outcome can be widely applied in estimating the effective thermal conductivity of other foam materials.
引用
收藏
页码：65 / 71
页数：7
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