Microstructural characteristics, electrical conductivity and mechanical properties of Cu matrix composites reinforced with dual-phase borides
The effect of boride content on the microstructure, electrical conductivity, and mechanical properties of TiB2-MB2/Cu composites (M = Cr, Mo, and Zr) was systematically investigated. The composites were prepared via spark plasma sintering. The results indicated that the double borides were uniformly...
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Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424028230 |
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| author | Bo Li Yimin Gao Cong Li Zhen Cao Xingjuan Yao Da Wu Pucun Bai Zhong Chen |
| author_facet | Bo Li Yimin Gao Cong Li Zhen Cao Xingjuan Yao Da Wu Pucun Bai Zhong Chen |
| author_sort | Bo Li |
| collection | DOAJ |
| description | The effect of boride content on the microstructure, electrical conductivity, and mechanical properties of TiB2-MB2/Cu composites (M = Cr, Mo, and Zr) was systematically investigated. The composites were prepared via spark plasma sintering. The results indicated that the double borides were uniformly distributed in the Cu matrix without visible agglomeration, and excellent interfacial bonding was achieved between the borides and the Cu matrix. The electrical conductivity of the Cu composite with 5 wt% TiB2 and 15 wt% ZrB2 increased by 503 % compared to the Cu-20 wt% TiB2 composite. However, the hardness of the Cu composite with 5 wt% TiB2 and 15 wt% ZrB2 decreased by only 22 %. The wear resistance of the composites was significantly enhanced due to the synergistic effect of the dual-phase boride particles. The wear resistance of the Cu composite with 5 wt% TiB2 and 15 wt% ZrB2 was 4.12 times higher than that of the Cu-20 wt% TiB2 composite standard sample when tested under an applied load of 10 N. The worn surface of the composites exhibited minimal roughness. Therefore, the Cu matrix composites with dual-phase borides achieved desirable comprehensive performance in terms of electrical, mechanical, and tribological properties. |
| format | Article |
| id | doaj-art-55c1c5a5258d45b4a99957b3affa0bee |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-55c1c5a5258d45b4a99957b3affa0bee2025-01-19T06:25:08ZengElsevierJournal of Materials Research and Technology2238-78542025-01-0134114Microstructural characteristics, electrical conductivity and mechanical properties of Cu matrix composites reinforced with dual-phase boridesBo Li0Yimin Gao1Cong Li2Zhen Cao3Xingjuan Yao4Da Wu5Pucun Bai6Zhong Chen7State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, China; School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore; Corresponding author. State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China; Corresponding author.Ningbo Tuopu Group Co., Ltd, Ningbo, 315800, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaCollege of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot, 010051, ChinaSchool of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore; Corresponding author.The effect of boride content on the microstructure, electrical conductivity, and mechanical properties of TiB2-MB2/Cu composites (M = Cr, Mo, and Zr) was systematically investigated. The composites were prepared via spark plasma sintering. The results indicated that the double borides were uniformly distributed in the Cu matrix without visible agglomeration, and excellent interfacial bonding was achieved between the borides and the Cu matrix. The electrical conductivity of the Cu composite with 5 wt% TiB2 and 15 wt% ZrB2 increased by 503 % compared to the Cu-20 wt% TiB2 composite. However, the hardness of the Cu composite with 5 wt% TiB2 and 15 wt% ZrB2 decreased by only 22 %. The wear resistance of the composites was significantly enhanced due to the synergistic effect of the dual-phase boride particles. The wear resistance of the Cu composite with 5 wt% TiB2 and 15 wt% ZrB2 was 4.12 times higher than that of the Cu-20 wt% TiB2 composite standard sample when tested under an applied load of 10 N. The worn surface of the composites exhibited minimal roughness. Therefore, the Cu matrix composites with dual-phase borides achieved desirable comprehensive performance in terms of electrical, mechanical, and tribological properties.http://www.sciencedirect.com/science/article/pii/S2238785424028230Copper matrix compositesDual-phase boridesInterfacial bondingWear mechanismElectrical conductivity |
| spellingShingle | Bo Li Yimin Gao Cong Li Zhen Cao Xingjuan Yao Da Wu Pucun Bai Zhong Chen Microstructural characteristics, electrical conductivity and mechanical properties of Cu matrix composites reinforced with dual-phase borides Journal of Materials Research and Technology Copper matrix composites Dual-phase borides Interfacial bonding Wear mechanism Electrical conductivity |
| title | Microstructural characteristics, electrical conductivity and mechanical properties of Cu matrix composites reinforced with dual-phase borides |
| title_full | Microstructural characteristics, electrical conductivity and mechanical properties of Cu matrix composites reinforced with dual-phase borides |
| title_fullStr | Microstructural characteristics, electrical conductivity and mechanical properties of Cu matrix composites reinforced with dual-phase borides |
| title_full_unstemmed | Microstructural characteristics, electrical conductivity and mechanical properties of Cu matrix composites reinforced with dual-phase borides |
| title_short | Microstructural characteristics, electrical conductivity and mechanical properties of Cu matrix composites reinforced with dual-phase borides |
| title_sort | microstructural characteristics electrical conductivity and mechanical properties of cu matrix composites reinforced with dual phase borides |
| topic | Copper matrix composites Dual-phase borides Interfacial bonding Wear mechanism Electrical conductivity |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424028230 |
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