Interfacial characteristics, electrical conductivity, mechanical performance, and tribology behavior of ZrB2/Cu composites
The inferior anti-wear properties limited the service life and stability of the Cu materials in mechanical-electronic engineering fields. The ZrB2/Cu composites were prepared to optimize tribological and electrical properties based on the high hardness and low electrical resistance of ZrB2 ceramics....
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| Format: | Article |
| Language: | English |
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Elsevier
2025-08-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525007865 |
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| author | Cong Li Jing Shi Bo Li Weijia Ren Zhen Cao Lan Wei Da Wu Yimin Gao Pucun Bai Zhong Chen |
| author_facet | Cong Li Jing Shi Bo Li Weijia Ren Zhen Cao Lan Wei Da Wu Yimin Gao Pucun Bai Zhong Chen |
| author_sort | Cong Li |
| collection | DOAJ |
| description | The inferior anti-wear properties limited the service life and stability of the Cu materials in mechanical-electronic engineering fields. The ZrB2/Cu composites were prepared to optimize tribological and electrical properties based on the high hardness and low electrical resistance of ZrB2 ceramics. Introducing ZrB2 micro/nanoparticles significantly improved the Cu matrix’s hardness without severely reducing its electrical conductivity. Therefore, the electrical conductivity and hardness of the Cu-20 wt%ZrB2 composite were 20.18 %IACS and 231.64 HV, respectively. The compression strength of composites first improved and then decreased with the ZrB2 content. The lubrication characteristics offered by the continuous tribo-layer and the support effects of ZrB2 micro/nanoparticles were the primary reasons for enhancing friction reduction and anti-wear properties in Cu matrix composites. This work provided a theoretical foundation for the structural design of Cu-based composites with desirable electrical conductivity and wear resistance. |
| format | Article |
| id | doaj-art-1e3c502d669d496caa99533a6f36b0d8 |
| institution | OA Journals |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-1e3c502d669d496caa99533a6f36b0d82025-08-20T02:37:10ZengElsevierMaterials & Design0264-12752025-08-0125611436610.1016/j.matdes.2025.114366Interfacial characteristics, electrical conductivity, mechanical performance, and tribology behavior of ZrB2/Cu compositesCong Li0Jing Shi1Bo Li2Weijia Ren3Zhen Cao4Lan Wei5Da Wu6Yimin Gao7Pucun Bai8Zhong Chen9State 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 at: State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China.Xi’an Surface Material Protection Co., Ltd., Xi’an 710200, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; Corresponding authors.Analysis and Testing Center, University of Electronic Science and Technology of China, Chengdu 611731, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; Corresponding authors.School of Materials Science and Engineering, Nanyang Technological University, 639798, SingaporeState 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, 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 authors.The inferior anti-wear properties limited the service life and stability of the Cu materials in mechanical-electronic engineering fields. The ZrB2/Cu composites were prepared to optimize tribological and electrical properties based on the high hardness and low electrical resistance of ZrB2 ceramics. Introducing ZrB2 micro/nanoparticles significantly improved the Cu matrix’s hardness without severely reducing its electrical conductivity. Therefore, the electrical conductivity and hardness of the Cu-20 wt%ZrB2 composite were 20.18 %IACS and 231.64 HV, respectively. The compression strength of composites first improved and then decreased with the ZrB2 content. The lubrication characteristics offered by the continuous tribo-layer and the support effects of ZrB2 micro/nanoparticles were the primary reasons for enhancing friction reduction and anti-wear properties in Cu matrix composites. This work provided a theoretical foundation for the structural design of Cu-based composites with desirable electrical conductivity and wear resistance.http://www.sciencedirect.com/science/article/pii/S0264127525007865ZrB2/Cu compositesElectrical conductivityMechanical performanceLubrication tribo-layer |
| spellingShingle | Cong Li Jing Shi Bo Li Weijia Ren Zhen Cao Lan Wei Da Wu Yimin Gao Pucun Bai Zhong Chen Interfacial characteristics, electrical conductivity, mechanical performance, and tribology behavior of ZrB2/Cu composites Materials & Design ZrB2/Cu composites Electrical conductivity Mechanical performance Lubrication tribo-layer |
| title | Interfacial characteristics, electrical conductivity, mechanical performance, and tribology behavior of ZrB2/Cu composites |
| title_full | Interfacial characteristics, electrical conductivity, mechanical performance, and tribology behavior of ZrB2/Cu composites |
| title_fullStr | Interfacial characteristics, electrical conductivity, mechanical performance, and tribology behavior of ZrB2/Cu composites |
| title_full_unstemmed | Interfacial characteristics, electrical conductivity, mechanical performance, and tribology behavior of ZrB2/Cu composites |
| title_short | Interfacial characteristics, electrical conductivity, mechanical performance, and tribology behavior of ZrB2/Cu composites |
| title_sort | interfacial characteristics electrical conductivity mechanical performance and tribology behavior of zrb2 cu composites |
| topic | ZrB2/Cu composites Electrical conductivity Mechanical performance Lubrication tribo-layer |
| url | http://www.sciencedirect.com/science/article/pii/S0264127525007865 |
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