Effects of High Pressure Heat Treatment on Thermal Conductivity and Electrical Conductivity of CuAlBi Alloy

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  • Yu-quan Ma
    Mechanical and Electrical Engineering College, Hebei Normal University of Science and Technology
  • Hong-ju Lin
    Mechanical and Electrical Engineering College, Hebei Normal University of Science and Technology
  • Li-hong Zhang
    Mechanical and Electrical Engineering College, Hebei Normal University of Science and Technology

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The thermal conductivity and electrical conductivity of CuAlBi alloy before and after 1–6 GPa high pressure treatment were measured by thermal constant tester and conductivity gauge when it was heated at 700°C and lasted for 30 min. And the effects of high pressure heat treatment on thermal conductivity and electrical conductivity of CuAlBi alloy were discussed by its microstructure. The results show that the thermal conductivity variation trend of CuAlBi alloy before and after 3 GPa pressure heat treatment is almost the same in range of 25–600°C, high pressure can reduce the thermal conductivity and electrical conductivity of CuAlBi alloy, the thermal conductivity and electrical conductivity of the alloy decrease with the increment of pressure in less than 3 GPa, when the pressure is over 3 GPa, the variation of thermal conductivity and electrical conductivity are not obvious.

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