Influence of the Total Porosity on the Properties of Sintered Materials—A Review
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...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/5/730 |
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| author | Fátima Ternero Luís Guerra Rosa Petr Urban Juan Manuel Montes Francisco G. Cuevas |
| author_facet | Fátima Ternero Luís Guerra Rosa Petr Urban Juan Manuel Montes Francisco G. Cuevas |
| author_sort | Fátima Ternero |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T11:50:59Z |
| format | Article |
| id | doaj.art-46f30ece49b4468395ba3fbadc7d2187 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T11:50:59Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-46f30ece49b4468395ba3fbadc7d21872023-11-21T17:39:58ZengMDPI AGMetals2075-47012021-04-0111573010.3390/met11050730Influence of the Total Porosity on the Properties of Sintered Materials—A ReviewFátima Ternero0Luís Guerra Rosa1Petr Urban2Juan Manuel Montes3Francisco G. Cuevas4Advanced Materials Engineering Group, Higher Technical School of Engineering, University of Seville, Camino de los Descubrimientos, s/n, 41092 Sevilla, SpainIDMEC, Instituto de Engenharia Mecânica, Instituto Superior Técnico, University of Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, PortugalAdvanced Materials Engineering Group, Higher Technical School of Engineering, University of Seville, Camino de los Descubrimientos, s/n, 41092 Sevilla, SpainAdvanced Materials Engineering Group, Higher Technical School of Engineering, University of Seville, Camino de los Descubrimientos, s/n, 41092 Sevilla, SpainAdvanced Materials Engineering Group, Higher Technical School of Engineering, Campus El Carmen, University of Huelva, Avda. Tres de marzo s/n, 21071 Huelva, SpainPorosity 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.https://www.mdpi.com/2075-4701/11/5/730effective propertiesporous materialssintered materialsmodellingporosity influence |
| spellingShingle | Fátima Ternero Luís Guerra Rosa Petr Urban Juan Manuel Montes Francisco G. Cuevas Influence of the Total Porosity on the Properties of Sintered Materials—A Review Metals effective properties porous materials sintered materials modelling porosity influence |
| title | Influence of the Total Porosity on the Properties of Sintered Materials—A Review |
| title_full | Influence of the Total Porosity on the Properties of Sintered Materials—A Review |
| title_fullStr | Influence of the Total Porosity on the Properties of Sintered Materials—A Review |
| title_full_unstemmed | Influence of the Total Porosity on the Properties of Sintered Materials—A Review |
| title_short | Influence of the Total Porosity on the Properties of Sintered Materials—A Review |
| title_sort | influence of the total porosity on the properties of sintered materials a review |
| topic | effective properties porous materials sintered materials modelling porosity influence |
| url | https://www.mdpi.com/2075-4701/11/5/730 |
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