Glass-Transition-Like Behavior of Grain Boundaries in Nanocrystalline Gold

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Author(s)

Abstract

<p>Characteristic property changes were observed for high density and high purity nanocrystalline (<i>n</i>-) Au prepared by the gas deposition method. The increase in internal friction with a modulus defect started at ~180 K and became steep above 200 K. An increase in endothermic heat flow began at ~170 K. The electrical resistivity showed a deviation from a linear increase with the temperature at ~130 K. All the characteristic changes were reproduced by the repetition of the thermal cycle below 300 K, but the amounts diminished after the grain growth. These characteristic temperature changes indicate a glass-transition-like behavior of the grain boundaries in <i>n</i>-Au.</p>

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 59(1), 47-52, 2018

    The Japan Institute of Metals and Materials

Codes

  • NII Article ID (NAID)
    130006279180
  • NII NACSIS-CAT ID (NCID)
    AA1151294X
  • Text Lang
    ENG
  • ISSN
    1345-9678
  • NDL Article ID
    028739714
  • NDL Call No.
    Z53-J286
  • Data Source
    NDL  J-STAGE 
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