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Thermal Conductivity Properties of ZnAl/ Fe-based Amorphous Composites Manufactured by Pressureless Sintering
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School of Materials Science and Engineering,Nanchang Hangkong University,School of Materials Science and Engineering,Nanchang Hangkong University

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    Abstract:

    The Fe-based amorphous composites reinforced by toughness ZnAl particle were prepared using pressureless sintering methods, and the structure, thermal stability and thermal conductivity of the composite material were investigated by XRD, SEM, DSC and laser indeed thermal conductivity tester, respectively. The results illustrate that compact ZnAl/ Fe-based amorphous composites can be formed by using pressureless sintering technique in the supercooled liquid region. ZnAl has no effect on the nature of Fe-based amorphous matrix. There is no interface reaction phase generated in sintering process, but the thermal stability slightly decreases. Within the scope of the 298 K to 423 K, the heat conduction coefficient of composites is lower than that of the Fe-based amorphous alloy, and the thermal diffusion coefficient slightly change with the raising the temperature, which show that the composite materials has the better thermal insulation property.

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[Yang Xiaomeng, Chen Qingjun. Thermal Conductivity Properties of ZnAl/ Fe-based Amorphous Composites Manufactured by Pressureless Sintering[J]. Rare Metal Materials and Engineering,2017,46(9):2523~2527.]
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History
  • Received:May 19,2015
  • Revised:March 11,2016
  • Adopted:March 29,2016
  • Online: November 29,2017