THE THERMAL-CONDUCTIVITY OF FOAMS .1. MODELS FOR HEAT-CONDUCTION

被引：131

作者：

LEACH, AG ^{[1
]}

机构：

[1] ICI PLC,CHEM & POLYMERS LTD,RUNCORN,CHESHIRE,ENGLAND

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1993年 / 26卷 / 05期

关键词：

Air solid foams - Foams thermal conductivity - Heat conduction effects - Light weight materials - Two phase materials;

D O I：

10.1088/0022-3727/26/5/003

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The transfer of heat through a cellular material is considered, taking into account conduction in the solid and gas phases, but excluding radiation and convection. Formulae are derived which relate the apparent conductivity of the material to the conductivities of the component phases and to the density. Some published methods of reaching such a conclusion are critically reviewed and compared. It is shown by binomial expansion that the various formulae tend to the same approximate result for foams of low density.

引用

页码：733 / 739

页数：7

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