Study on the Electrical and Mechanical Properties of TiC Particle-Reinforced Copper Matrix Composites Regulated by Different Rare Earth Elements
Copper matrix composites (CMCs) synergistically reinforced with rare earth oxides (Re<sub>2</sub>O<sub>3</sub>) and TiC were prepared using a powder metallurgy process with vacuum hot-pressing and sintering technology, aiming to explore new ways to optimize the properties of...
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2025-01-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/15/2/96 |
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| author | Denghui Li Changfei Sun Zhenjie Zhai Zhe Wang Cong Chen Qian Lei |
| author_facet | Denghui Li Changfei Sun Zhenjie Zhai Zhe Wang Cong Chen Qian Lei |
| author_sort | Denghui Li |
| collection | DOAJ |
| description | Copper matrix composites (CMCs) synergistically reinforced with rare earth oxides (Re<sub>2</sub>O<sub>3</sub>) and TiC were prepared using a powder metallurgy process with vacuum hot-pressing and sintering technology, aiming to explore new ways to optimize the properties of composites. Through this innovative approach, we propose a new solution strategy and idea for the difficult problem of mutual constraints between electrical and mechanical properties faced by traditional dual-phase reinforced Cu-matrix composites. Meanwhile, the modulation mechanism of Re<sub>2</sub>O<sub>3</sub> in CMCs and the electrical and mechanical properties of the composites were investigated. The compressive yield strength was improved from pure Cu (50 MPa) to TiC/Cu (159 MPa). The yield strength of Eu<sub>2</sub>O<sub>3</sub>-TiC/Cu obtained after biphasic strengthening is 213 MPa, which is 326% higher than that of pure Cu, and the ultimate compressive strength reaches 790 MPa. The conductivity was enhanced from TiC/Cu (81.4% IACS) to La<sub>2</sub>O<sub>3</sub>-TiC/Cu (87.3% IACS). |
| format | Article |
| id | doaj-art-060a71b5aaec46cfa9898435fbee87ab |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Nanomaterials |
| spelling | doaj-art-060a71b5aaec46cfa9898435fbee87ab2025-01-24T13:44:07ZengMDPI AGNanomaterials2079-49912025-01-011529610.3390/nano15020096Study on the Electrical and Mechanical Properties of TiC Particle-Reinforced Copper Matrix Composites Regulated by Different Rare Earth ElementsDenghui Li0Changfei Sun1Zhenjie Zhai2Zhe Wang3Cong Chen4Qian Lei5School of Chemistry and Materials Science, Qinghai Minzu University, Xining 810007, ChinaSchool of Chemistry and Materials Science, Qinghai Minzu University, Xining 810007, ChinaSchool of Chemistry and Materials Science, Qinghai Minzu University, Xining 810007, ChinaSchool of Chemistry and Materials Science, Qinghai Minzu University, Xining 810007, ChinaSchool of Chemistry and Materials Science, Qinghai Minzu University, Xining 810007, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaCopper matrix composites (CMCs) synergistically reinforced with rare earth oxides (Re<sub>2</sub>O<sub>3</sub>) and TiC were prepared using a powder metallurgy process with vacuum hot-pressing and sintering technology, aiming to explore new ways to optimize the properties of composites. Through this innovative approach, we propose a new solution strategy and idea for the difficult problem of mutual constraints between electrical and mechanical properties faced by traditional dual-phase reinforced Cu-matrix composites. Meanwhile, the modulation mechanism of Re<sub>2</sub>O<sub>3</sub> in CMCs and the electrical and mechanical properties of the composites were investigated. The compressive yield strength was improved from pure Cu (50 MPa) to TiC/Cu (159 MPa). The yield strength of Eu<sub>2</sub>O<sub>3</sub>-TiC/Cu obtained after biphasic strengthening is 213 MPa, which is 326% higher than that of pure Cu, and the ultimate compressive strength reaches 790 MPa. The conductivity was enhanced from TiC/Cu (81.4% IACS) to La<sub>2</sub>O<sub>3</sub>-TiC/Cu (87.3% IACS).https://www.mdpi.com/2079-4991/15/2/96powder metallurgycompositesduplex reinforcementrare earth modification |
| spellingShingle | Denghui Li Changfei Sun Zhenjie Zhai Zhe Wang Cong Chen Qian Lei Study on the Electrical and Mechanical Properties of TiC Particle-Reinforced Copper Matrix Composites Regulated by Different Rare Earth Elements Nanomaterials powder metallurgy composites duplex reinforcement rare earth modification |
| title | Study on the Electrical and Mechanical Properties of TiC Particle-Reinforced Copper Matrix Composites Regulated by Different Rare Earth Elements |
| title_full | Study on the Electrical and Mechanical Properties of TiC Particle-Reinforced Copper Matrix Composites Regulated by Different Rare Earth Elements |
| title_fullStr | Study on the Electrical and Mechanical Properties of TiC Particle-Reinforced Copper Matrix Composites Regulated by Different Rare Earth Elements |
| title_full_unstemmed | Study on the Electrical and Mechanical Properties of TiC Particle-Reinforced Copper Matrix Composites Regulated by Different Rare Earth Elements |
| title_short | Study on the Electrical and Mechanical Properties of TiC Particle-Reinforced Copper Matrix Composites Regulated by Different Rare Earth Elements |
| title_sort | study on the electrical and mechanical properties of tic particle reinforced copper matrix composites regulated by different rare earth elements |
| topic | powder metallurgy composites duplex reinforcement rare earth modification |
| url | https://www.mdpi.com/2079-4991/15/2/96 |
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