Article

Influence of the Total Porosity on the Properties of Sintered Materials—A Review

Metals

Fátima Ternero; Luís Guerra Rosa; Francisco G. Cuevas — 2021

Key information

Authors:

Fátima Ternero; Luís Guerra Rosa (Luís Manuel Guerra da Silva Rosa); Petr Urban; Juan Manuel Montes; Francisco G. Cuevas

Published in

April 2021

Abstract

Porosity is a characteristic present in most sintered materials, full densification only being achieved in special cases. For some sintered materials, porosity is indeed a desired characteristic, serving for the intended application of the material. In any case, the porosity present in materials can have a strong effect on some of their properties, both structural and functional. In this paper, some of the expressions proposed to describe the influence of the total porosity on the effective properties of sintered materials are examined. Moreover, a universal expression (with two fitting parameters) valid to satisfactorily represent all the analysed behaviours is proposed. One of these parameters can be assimilated to the tap porosity of the powders used to manufacture the material. The properties examined were elastic moduli, ultimate strength, thermal and electrical conductivities, magnetic characteristics, and other properties directly related to these ones. The study is valid for sintered materials, both metallic and ceramic, with a homogeneous and non-texturised microstructure.

Publication details

Authors in the community:

Title of the publication container

Metals

First page or article number

730

Last page

730

Volume

11

Issue

5

Fields of Science and Technology (FOS)

materials-engineering - Materials engineering

Publication language (ISO code)

eng - English

Rights type:

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