Optimization of the Properties of Multilayer Porous Permeable Materials

We propose a mathematical model of production of multilayer filtering porous permeable materials (PPM) with variable porosity by the method of dry radial-isostatic pressing of ShKh15 steel powder together with a pore-forming material. We find the distribution of density along the radius of a hollow...

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Published inMaterials science (New York, N.Y.) Vol. 56; no. 4; pp. 530 - 535
Main Authors Povstianoi, O. Yu, Rud, V. D., Imbirovych, N. Yu, Halchuk, T. N., Chetverzhuk, T. I., Smal, M. V., Dziubynskyi, A. V.
Format Journal Article
LanguageEnglish
Published New York Springer US 2021
Springer
Springer Nature B.V
Subjects
Bearing steels
Characterization and Evaluation of Materials
Chemistry and Materials Science
Inhomogeneity
Isostatic pressing
Materials Science
Mathematical analysis
Multilayers
Optimization
Permeability
Pore formation
Porosity
Porous materials
Powders
Solid Mechanics
Structural Materials
porous material
mathematical modeling
radial-isostatic pressing
industrial wastes
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Summary:We propose a mathematical model of production of multilayer filtering porous permeable materials (PPM) with variable porosity by the method of dry radial-isostatic pressing of ShKh15 steel powder together with a pore-forming material. We find the distribution of density along the radius of a hollow PPM obtained by radial-isostatic pressing. On the basis of theoretical calculations, we analyze the factors responsible for the inhomogeneity of the distribution of porosity in PPM. The fact that the distribution of porosity in a cylindrical pressed PPM is inhomogeneous is established and confirmed by the results of computer simulations. It is shown that the degree of porosity increases with the radius.
ISSN:1068-820X
1573-885X
DOI:10.1007/s11003-021-00460-2