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The piezoresistance coefficients of copper and copper-nickel alloys

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Abstract

This paper attempts to further a better understanding of the piezoresistance coefficients by studying the piezoresistive effects in copper and copper-nickel alloys. The experimental evidence of isotropic piezoresistance coefficients (π11 = π12) has been obtained for the annealed copper and copper-nickel alloys. The piezoresistance coefficients of the cold-worked copper and Cu60Ni40 alloy are of the tensor character (π11 ≠ π12). A physical explanation has been given to the change of the (π ij ) tensor.

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Authors and Affiliations

  1. Institute of Precious Metals, Kunming, 650221, People's Republic of China

    Changyi Hu & Yiqun Gao

  2. Institute of Physics, Chinese Academy of Sciences, Beijing, 100080, People's Republic of China

    Zhongyi Sheng

Authors
  1. Changyi Hu
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  2. Yiqun Gao
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  3. Zhongyi Sheng
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Hu, C., Gao, Y. & Sheng, Z. The piezoresistance coefficients of copper and copper-nickel alloys. Journal of Materials Science 35, 381–386 (2000). https://doi.org/10.1023/A:1004755014553

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  • DOI: https://doi.org/10.1023/A:1004755014553

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