Elasticity and Viscosity of Isotropic Porous Materials

Theoretical dependences of elasticity moduli, Poisson's ratio, and the shear and volumetric viscosity of porous isotropic materials on their relative density are generalized. An approximate description is suggested for the elasticity and viscosity of isotropic porous materials on the basis of a...

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Bibliographic Details
Published in:Powder metallurgy and metal ceramics 2003-01, Vol.42 (1-2), p.81-87
Main Author: Koval'chenko, Mikhail S
Format: Article
Language:English
Subjects:
Amorphous materials
Density
Elasticity
Porous materials
Powder metallurgy
Shear
Sintering
Studies
Viscosity
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Summary:Theoretical dependences of elasticity moduli, Poisson's ratio, and the shear and volumetric viscosity of porous isotropic materials on their relative density are generalized. An approximate description is suggested for the elasticity and viscosity of isotropic porous materials on the basis of analyzing these dependences for spherical, needle- and disk-shaped pores, and also experimental data for the elasticity moduli of sintered nickel, iron, and boron carbide taking account of mesostructural imperfection of powder bodies, and also of data for amorphous glass sintered under pressure in a vacuum.[PUBLICATION ABSTRACT]
ISSN:1068-1302
1573-9066
DOI:10.1023/A:1023955418754