Thermal conductivity of porous structures

被引：34

作者：

Braginsky, L. ^{[1
]}

Shklover, V.

Witz, G.

Bossmann, H. -P.

机构：

[1] ETH, Crystallog Lab, CH-8093 Zurich, Switzerland

[2] Alstom Schweiz AG, CH-5401 Baden, Switzerland

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.75.094301

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermal conductivity of porous media is considered. The model permits regular power-series expansion of the expression for thermal conductivity as a function of porosity. The coefficients of the expansion depend on two-site correlation function of local thermal conductivities, which can be calculated from the microscopy image of the structure. Thermal conductivities of some model two-dimensional structures as well as a real porous yttria-stabilized zirconia film are calculated and discussed.

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页数：10

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