Thermal stability and fragility of Pd-Si binary bulk metallic glasses

Na Chen, Yang Li, Ke Fu Yao

    Research output: Contribution to journalArticlepeer-review

    12 Citations (Scopus)

    Abstract

    The thermal stability of the glassy structure and the supercooled liquids of Pd80+xSi20-x (x = 0, 1, and 2) binary bulk metallic glasses were investigated by differential scanning calorimetry. It is found that Pd-Si binary metallic glasses exhibit large activation energy for glass transition and crystallization, indicating the glassy structure and the supercooled liquids possess high thermal stability. Based on the kinetic nature of the glass transition and thus the resulted heating rate dependence, the fragility index of the Pd-Si binary glassy alloys has been obtained, and compared with other bulk metallic glasses.

    Original languageEnglish
    Pages (from-to)S211-S214
    JournalJournal of Alloys and Compounds
    Volume504
    Issue numberSUPPL. 1
    DOIs
    Publication statusPublished - 2010 Aug

    Keywords

    • Binary alloy
    • Calorimetry
    • Fragility
    • Metallic glasses
    • Thermal analysis

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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