Mechanically Induced Solid-State Reaction for Synthesizing New Multicomponent Ta<SUB>55</SUB>Zr<SUB>10</SUB>Ni<SUB>10</SUB>Al<SUB>10</SUB>Cu<SUB>15</SUB> Glassy Alloy Powders with Extremely Wide Supercooled Liquid Region

  • El-Eskandarany M. Sherif
    Inoue SuperLiquid Glass Project, Exploratory Research for Advanced Technology,Japan Science and Technology Corporation
  • Zhang Wei
    Inoue SuperLiquid Glass Project, Exploratory Research for Advanced Technology,Japan Science and Technology Corporation
  • Inoue Akihisa
    Institute for Materials Research, Tohoku University

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  • Mechanically Induced Solid-State Reaction for Synthesizing New Multicomponent Ta55Zr10Ni10Al10Cu15 Glassy Alloy Powders with Extremely Wide Supercooled Liquid Region

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Abstract

New multicomponent Ta-based glassy alloy powder was synthesized by mechanical alloying a mixture of elemental Ta55Zr10Ni10Al10Cu15 powders at room temperature, using a low-energy ball mill. The glassy powders of the final-product (1080 ks) in which its glass transition temperature (Tg) lies at a high temperature (834 K), crystallize through a single sharp exothermic peak at 1004 K (Tx). The total enthalpy change of crystallization (ΔHx) is −10.32 kJ/mol. The supercooled liquid region before crystallization (ΔTx) of the synthesized glassy powder shows the widest value (170 K) of any reported metallic glassy system.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 43 (6), 1422-1425, 2002

    The Japan Institute of Metals and Materials

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