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Microstructure and properties of Al2O3 dispersion-strengthened copper fabricated by reactive synthesis process

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Abstract

Al2O3 dispersion-strengthened copper alloy was prepared by reactive synthesis and spark plasma sintering (SPS) process. Studies show that nano-sized γ-Al2O3 particles with 27.4 nm mean size and 50-nm interval are homogeneously distributed in copper matrix. The density of SPS alloy is about 99 %, meanwhile, the electrical conductivity of sintered alloy is 72 % IACS and the Rockwell hardness can reach to HRB 91.

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Acknowledgments

This work was financially supported by the National Natural Science Foundation of China (No. 5043202). Authors are grateful to Dr. Peng Yan, Mr. Xue-Wen Liu, and Mr. Xiao-Kang Hu for their assistance in the experimental work.

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Authors and Affiliations

  1. Powder Metallurgy & Special Materials Research Department, General Research Institute for Nonferrous Metals, Beijing, 100088, China

    Xue-Hui Zhang, Chen-Guang Lin, Shun Cui & Zeng-De Li

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  1. Xue-Hui Zhang
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  2. Chen-Guang Lin
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  3. Shun Cui
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Correspondence to Chen-Guang Lin.

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Zhang, XH., Lin, CG., Cui, S. et al. Microstructure and properties of Al2O3 dispersion-strengthened copper fabricated by reactive synthesis process. Rare Met. 33, 191–195 (2014). https://doi.org/10.1007/s12598-013-0149-3

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  • DOI: https://doi.org/10.1007/s12598-013-0149-3

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