Analysis of Microstructure and Mechanical Properties of Bi-Modal Nanoparticle-Reinforced Cu-Matrix
Bi-modal particles are used as reinforcements for Cu-matrix. Nano TiC and/or Al<sub>2</sub>O<sub>3</sub> were mechanically mixed with Cu particles for 24 h. The Cu-TiC/Al<sub>2</sub>O<sub>3</sub> composites were successfully produced using spark plasma...
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MDPI AG
2021-09-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/9/1081 |
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| author | Fadel S. Hamid Omayma A. Elkady A. R. S. Essa A. El-Nikhaily Ayman Elsayed Ashraf K. Eessaa |
| author_facet | Fadel S. Hamid Omayma A. Elkady A. R. S. Essa A. El-Nikhaily Ayman Elsayed Ashraf K. Eessaa |
| author_sort | Fadel S. Hamid |
| collection | DOAJ |
| description | Bi-modal particles are used as reinforcements for Cu-matrix. Nano TiC and/or Al<sub>2</sub>O<sub>3</sub> were mechanically mixed with Cu particles for 24 h. The Cu-TiC/Al<sub>2</sub>O<sub>3</sub> composites were successfully produced using spark plasma sintering (SPS). To investigate the effect of TiC and Al<sub>2</sub>O<sub>3</sub> nanoparticles on the microstructure and mechanical properties of Cu-TiC/Al<sub>2</sub>O<sub>3</sub> nanocomposites, they were added, whether individually or combined, to the copper (Cu) matrix at 3, 6, and 9 wt.%. The results showed that titanium carbide was homogeneously distributed in the copper matrix, whereas alumina nanoparticles showed some agglomeration at Cu grain boundaries. The crystallite size exhibited a clear reduction as a reaction to the increase of the reinforcement ratio. Furthermore, increasing the TiC and Al<sub>2</sub>O<sub>3</sub> nanoparticle content in the Cu-TiC/Al<sub>2</sub>O<sub>3</sub> composites reduced the relative density from 95% for Cu-1.5 wt.% TiC and 1.5 wt.% Al<sub>2</sub>O<sub>3</sub> to 89% for Cu-4.5 wt.% TiC and 4.5 wt.% Al<sub>2</sub>O<sub>3</sub>. Cu-9 wt.% TiC achieved a maximum compressive strength of 851.99 N/mm<sup>2</sup>. Hardness values increased with increasing ceramic content. |
| first_indexed | 2024-03-10T07:46:09Z |
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| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-03-10T07:46:09Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-1f0a6d61c56a4a1f9c9d92d9e2b610942023-11-22T12:35:34ZengMDPI AGCrystals2073-43522021-09-01119108110.3390/cryst11091081Analysis of Microstructure and Mechanical Properties of Bi-Modal Nanoparticle-Reinforced Cu-MatrixFadel S. Hamid0Omayma A. Elkady1A. R. S. Essa2A. El-Nikhaily3Ayman Elsayed4Ashraf K. Eessaa5Mechanical Department, Faculty of Technology and Education, Suez University, Suez 43519, EgyptPowder Technology Division, Manufacturing Technology Department, Central Metallurgical R & D Institute, 1 Elfelezat St. Eltebeen, Cairo 11421, EgyptMechanical Department, Faculty of Technology and Education, Suez University, Suez 43519, EgyptMechanical Department, Faculty of Technology and Education, Suez University, Suez 43519, EgyptPowder Technology Division, Manufacturing Technology Department, Central Metallurgical R & D Institute, 1 Elfelezat St. Eltebeen, Cairo 11421, EgyptNanotechnology Lab El Nozha, Electronic Research Institute (E.R.I.), Cairo 12622, EgyptBi-modal particles are used as reinforcements for Cu-matrix. Nano TiC and/or Al<sub>2</sub>O<sub>3</sub> were mechanically mixed with Cu particles for 24 h. The Cu-TiC/Al<sub>2</sub>O<sub>3</sub> composites were successfully produced using spark plasma sintering (SPS). To investigate the effect of TiC and Al<sub>2</sub>O<sub>3</sub> nanoparticles on the microstructure and mechanical properties of Cu-TiC/Al<sub>2</sub>O<sub>3</sub> nanocomposites, they were added, whether individually or combined, to the copper (Cu) matrix at 3, 6, and 9 wt.%. The results showed that titanium carbide was homogeneously distributed in the copper matrix, whereas alumina nanoparticles showed some agglomeration at Cu grain boundaries. The crystallite size exhibited a clear reduction as a reaction to the increase of the reinforcement ratio. Furthermore, increasing the TiC and Al<sub>2</sub>O<sub>3</sub> nanoparticle content in the Cu-TiC/Al<sub>2</sub>O<sub>3</sub> composites reduced the relative density from 95% for Cu-1.5 wt.% TiC and 1.5 wt.% Al<sub>2</sub>O<sub>3</sub> to 89% for Cu-4.5 wt.% TiC and 4.5 wt.% Al<sub>2</sub>O<sub>3</sub>. Cu-9 wt.% TiC achieved a maximum compressive strength of 851.99 N/mm<sup>2</sup>. Hardness values increased with increasing ceramic content.https://www.mdpi.com/2073-4352/11/9/1081coppernanocompositesmetal-matrix composites (MMCs)mechanical propertiesspark plasma sintering |
| spellingShingle | Fadel S. Hamid Omayma A. Elkady A. R. S. Essa A. El-Nikhaily Ayman Elsayed Ashraf K. Eessaa Analysis of Microstructure and Mechanical Properties of Bi-Modal Nanoparticle-Reinforced Cu-Matrix Crystals copper nanocomposites metal-matrix composites (MMCs) mechanical properties spark plasma sintering |
| title | Analysis of Microstructure and Mechanical Properties of Bi-Modal Nanoparticle-Reinforced Cu-Matrix |
| title_full | Analysis of Microstructure and Mechanical Properties of Bi-Modal Nanoparticle-Reinforced Cu-Matrix |
| title_fullStr | Analysis of Microstructure and Mechanical Properties of Bi-Modal Nanoparticle-Reinforced Cu-Matrix |
| title_full_unstemmed | Analysis of Microstructure and Mechanical Properties of Bi-Modal Nanoparticle-Reinforced Cu-Matrix |
| title_short | Analysis of Microstructure and Mechanical Properties of Bi-Modal Nanoparticle-Reinforced Cu-Matrix |
| title_sort | analysis of microstructure and mechanical properties of bi modal nanoparticle reinforced cu matrix |
| topic | copper nanocomposites metal-matrix composites (MMCs) mechanical properties spark plasma sintering |
| url | https://www.mdpi.com/2073-4352/11/9/1081 |
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