Fabrication and Characterization of the Modified EV31-Based Metal Matrix Nanocomposites
Metal matrix nanocomposites (MMNCs) with high specific strength have been of interest for numerous researchers. In the current study, Mg matrix nanocomposites reinforced with AlN nanoparticles were produced using the mechanical stirring-assisted casting method. Microstructure, hardness, physical, th...
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| Format: | Article |
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MDPI AG
2021-01-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/1/125 |
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| author | Seyed Kiomars Moheimani Mehran Dadkhah Mohammad Hossein Mosallanejad Abdollah Saboori |
| author_facet | Seyed Kiomars Moheimani Mehran Dadkhah Mohammad Hossein Mosallanejad Abdollah Saboori |
| author_sort | Seyed Kiomars Moheimani |
| collection | DOAJ |
| description | Metal matrix nanocomposites (MMNCs) with high specific strength have been of interest for numerous researchers. In the current study, Mg matrix nanocomposites reinforced with AlN nanoparticles were produced using the mechanical stirring-assisted casting method. Microstructure, hardness, physical, thermal and electrical properties of the produced composites were characterized in this work. According to the microstructural evaluations, the ceramic nanoparticles were uniformly dispersed within the matrix by applying a mechanical stirring. At higher AlN contents, however, some agglomerates were observed as a consequence of a particle-pushing mechanism during the solidification. Microhardness results showed a slight improvement in the mechanical strength of the nanocomposites following the addition of AlN nanoparticles. Interestingly, nanocomposite samples were featured with higher electrical and thermal conductivities, which can be attributed to the structural effect of nanoparticles within the matrix. Moreover, thermal expansion analysis of the nanocomposites indicated that the presence of nanoparticles lowered the Coefficient of Thermal Expansion (CTE) in the case of nanocomposites. All in all, this combination of properties, including high mechanical strength, thermal and electrical conductivity, together with low CTE, make these new nanocomposites very promising materials for electro packaging applications. |
| first_indexed | 2024-03-09T05:21:18Z |
| format | Article |
| id | doaj.art-7b10121a599a4ea6a8bc0024f9735f55 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T05:21:18Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-7b10121a599a4ea6a8bc0024f9735f552023-12-03T12:40:11ZengMDPI AGMetals2075-47012021-01-0111112510.3390/met11010125Fabrication and Characterization of the Modified EV31-Based Metal Matrix NanocompositesSeyed Kiomars Moheimani0Mehran Dadkhah1Mohammad Hossein Mosallanejad2Abdollah Saboori3Advanced Materials Research Center, Department of Materials Engineering, Islamic Azad University, Najaf Abad Branch, Najaf Aba 8514143131, IranDepartment of Applied Science and Technology, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, ItalyDepartment of Materials Engineering, Isfahan University of Technology, Isfahan 8415683111, IranDepartment of Applied Science and Technology, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, ItalyMetal matrix nanocomposites (MMNCs) with high specific strength have been of interest for numerous researchers. In the current study, Mg matrix nanocomposites reinforced with AlN nanoparticles were produced using the mechanical stirring-assisted casting method. Microstructure, hardness, physical, thermal and electrical properties of the produced composites were characterized in this work. According to the microstructural evaluations, the ceramic nanoparticles were uniformly dispersed within the matrix by applying a mechanical stirring. At higher AlN contents, however, some agglomerates were observed as a consequence of a particle-pushing mechanism during the solidification. Microhardness results showed a slight improvement in the mechanical strength of the nanocomposites following the addition of AlN nanoparticles. Interestingly, nanocomposite samples were featured with higher electrical and thermal conductivities, which can be attributed to the structural effect of nanoparticles within the matrix. Moreover, thermal expansion analysis of the nanocomposites indicated that the presence of nanoparticles lowered the Coefficient of Thermal Expansion (CTE) in the case of nanocomposites. All in all, this combination of properties, including high mechanical strength, thermal and electrical conductivity, together with low CTE, make these new nanocomposites very promising materials for electro packaging applications.https://www.mdpi.com/2075-4701/11/1/125metal matrix nanocompositecastingthermophysical propertiescoefficient of thermal expansion |
| spellingShingle | Seyed Kiomars Moheimani Mehran Dadkhah Mohammad Hossein Mosallanejad Abdollah Saboori Fabrication and Characterization of the Modified EV31-Based Metal Matrix Nanocomposites Metals metal matrix nanocomposite casting thermophysical properties coefficient of thermal expansion |
| title | Fabrication and Characterization of the Modified EV31-Based Metal Matrix Nanocomposites |
| title_full | Fabrication and Characterization of the Modified EV31-Based Metal Matrix Nanocomposites |
| title_fullStr | Fabrication and Characterization of the Modified EV31-Based Metal Matrix Nanocomposites |
| title_full_unstemmed | Fabrication and Characterization of the Modified EV31-Based Metal Matrix Nanocomposites |
| title_short | Fabrication and Characterization of the Modified EV31-Based Metal Matrix Nanocomposites |
| title_sort | fabrication and characterization of the modified ev31 based metal matrix nanocomposites |
| topic | metal matrix nanocomposite casting thermophysical properties coefficient of thermal expansion |
| url | https://www.mdpi.com/2075-4701/11/1/125 |
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