A Method to Determine the Electrical Resistance of a Metallic Powder Mass under Compression
In this paper, a phenomenological model to predict the value of the electrical resistance of a compressed metal powder mass is proposed. The model, based on the experimental compressibility and resistivity-porosity curves, is useful in the field of the electrical resistance consolidation. In this ar...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-11-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/7/11/479 |
| _version_ | 1828419823944597504 |
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| author | Juan Manuel Montes Francisco Gómez Cuevas Fátima Ternero Raquel Astacio Eduardo Sánchez Caballero Jesús Cintas |
| author_facet | Juan Manuel Montes Francisco Gómez Cuevas Fátima Ternero Raquel Astacio Eduardo Sánchez Caballero Jesús Cintas |
| author_sort | Juan Manuel Montes |
| collection | DOAJ |
| description | In this paper, a phenomenological model to predict the value of the electrical resistance of a compressed metal powder mass is proposed. The model, based on the experimental compressibility and resistivity-porosity curves, is useful in the field of the electrical resistance consolidation. In this area is often required to find out whether a certain mass of powder inside a die of specified inner section, and subjected to a certain compression, reaches a sufficiently small resistance value so that it can be consolidated by electrical means. The model also predicts the electrical resistance value of the powder mass in case of powders with no oxide layers, or after removing them mechanically or electrically by a previous activation process. The model predictions have been successfully validated through direct measurements of electrical resistance in powder aggregates both in as-received state and after electrical activation. |
| first_indexed | 2024-12-10T15:00:57Z |
| format | Article |
| id | doaj.art-ad2708b5505c4e60920b5ba36aa40f7a |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-10T15:00:57Z |
| publishDate | 2017-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-ad2708b5505c4e60920b5ba36aa40f7a2022-12-22T01:44:10ZengMDPI AGMetals2075-47012017-11-0171147910.3390/met7110479met7110479A Method to Determine the Electrical Resistance of a Metallic Powder Mass under CompressionJuan Manuel Montes0Francisco Gómez Cuevas1Fátima Ternero2Raquel Astacio3Eduardo Sánchez Caballero4Jesús Cintas5Metallurgy and Materials Engineering Group, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, SpainDepartment of Chemical Engineering, Physical Chemistry and Materials Science, Escuela Técnica Superior de Ingeniería, Universidad de Huelva, Campus El Carmen, Avda. Tres de Marzo s/n, 21007 Huelva, SpainMetallurgy and Materials Engineering Group, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, SpainMetallurgy and Materials Engineering Group, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, SpainMetallurgy and Materials Engineering Group, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, SpainMetallurgy and Materials Engineering Group, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, SpainIn this paper, a phenomenological model to predict the value of the electrical resistance of a compressed metal powder mass is proposed. The model, based on the experimental compressibility and resistivity-porosity curves, is useful in the field of the electrical resistance consolidation. In this area is often required to find out whether a certain mass of powder inside a die of specified inner section, and subjected to a certain compression, reaches a sufficiently small resistance value so that it can be consolidated by electrical means. The model also predicts the electrical resistance value of the powder mass in case of powders with no oxide layers, or after removing them mechanically or electrically by a previous activation process. The model predictions have been successfully validated through direct measurements of electrical resistance in powder aggregates both in as-received state and after electrical activation.https://www.mdpi.com/2075-4701/7/11/479electrical resistancemodelingelectrical sintering |
| spellingShingle | Juan Manuel Montes Francisco Gómez Cuevas Fátima Ternero Raquel Astacio Eduardo Sánchez Caballero Jesús Cintas A Method to Determine the Electrical Resistance of a Metallic Powder Mass under Compression Metals electrical resistance modeling electrical sintering |
| title | A Method to Determine the Electrical Resistance of a Metallic Powder Mass under Compression |
| title_full | A Method to Determine the Electrical Resistance of a Metallic Powder Mass under Compression |
| title_fullStr | A Method to Determine the Electrical Resistance of a Metallic Powder Mass under Compression |
| title_full_unstemmed | A Method to Determine the Electrical Resistance of a Metallic Powder Mass under Compression |
| title_short | A Method to Determine the Electrical Resistance of a Metallic Powder Mass under Compression |
| title_sort | method to determine the electrical resistance of a metallic powder mass under compression |
| topic | electrical resistance modeling electrical sintering |
| url | https://www.mdpi.com/2075-4701/7/11/479 |
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