4)6Mo7O24.4H2O), Cupric nitrate(Cu(NO3)2.3H2O), Glycine and Ethylene diamine, followed by reducing in H2 at 700℃ to convert into Mo-20Cu powders. Effects of different pressure on sintering body of Mo-Cu alloy that sintered at 1150℃ were studied. The results show that the nano-powders which is fine with size of 70~80nm can be prepared by GNP-H2 reduction method. The relative density of Mo-Cu compact sintered at 1150℃ can achieve 99.7% of the theoretical and the microstructure of the compact distributes homogenously. With increase of pressure, the hardness, electrical conductivity and thermal conductivity will be enhanced with limit."/>

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Effects of pressure on preparation of Mo-Cu alloy by hot-press sintering
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School of Material Science and Engineering,Central South University,School of Material Science and Engineering,Central South University,School of Material Science and Engineering,Central South University,School of Material Science and Engineering,Central South University,School of Material Science and Engineering,Central South University

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    Abstract:

    The precursor powders were successfully prepared by GNP method with Ammonium molybdate((NH4)6Mo7O24.4H2O), Cupric nitrate(Cu(NO3)2.3H2O), Glycine and Ethylene diamine, followed by reducing in H2 at 700℃ to convert into Mo-20Cu powders. Effects of different pressure on sintering body of Mo-Cu alloy that sintered at 1150℃ were studied. The results show that the nano-powders which is fine with size of 70~80nm can be prepared by GNP-H2 reduction method. The relative density of Mo-Cu compact sintered at 1150℃ can achieve 99.7% of the theoretical and the microstructure of the compact distributes homogenously. With increase of pressure, the hardness, electrical conductivity and thermal conductivity will be enhanced with limit.

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[WANG Dezhi, LI Ran, DUAN Bohua, SUN Aokui, YIN Bangzhu. Effects of pressure on preparation of Mo-Cu alloy by hot-press sintering[J]. Rare Metal Materials and Engineering,2017,46(7):1998~2001.]
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  • Received:March 23,2015
  • Revised:April 29,2015
  • Adopted:June 11,2015
  • Online: November 14,2017
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