| Tungsten nanoparticle-strengthened copper composite prepared by a sol-gel method and in-situ reaction |
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| 作者姓名： | Tian-xing Lu Cun-guang Chen Zhi-meng Guo Pei Li Ming-xing Guo |
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| 作者单位： | Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China |
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| 摘 要： | Tungsten nanoparticle-strengthened Cu composites were prepared from nanopowder synthesized by a sol-gel method and in-situ hydrogen reduction. The tungsten particles in the Cu matrix were well-dispersed with an average size of approximately 100-200 nm. The addition of nanosized W particles remarkably improves the mechanical properties, while the electrical conductivity did not substantially decrease. The Cu-W composite with 6wt% W has the most comprehensive properties with an ultimate strength of 310 MPa, yield strength of 238 MPa, hardness of HV 108 and electrical conductivity of 90% IACS. The enhanced mechanical property and only a small loss of electrical conductivity demonstrate the potential of this new strategy to prepare W nanoparticle-strengthened Cu composites.
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| 关 键 词： | copper composites second phase strengthening tungsten sol-gel method |
Tungsten nanoparticle-strengthened copper composite prepared by a sol-gel method and in-situ reaction |
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| Tian-xing Lu,Cun-guang Chen,Zhi-meng Guo,Pei Li,Ming-xing Guo.Tungsten nanoparticle-strengthened copper composite prepared by a sol-gel method and in-situ reaction[J].International Journal of Minerals,Metallurgy and Materials,2019,26(11):1477-1484. |
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