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

Na Chen, Yang Li, Ke Fu Yao

Research output: Contribution to journalArticlepeer-review

16 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
Externally publishedYes

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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