On thermomechanical properties of Au-Ag-Pd-Cu-Si bulk metallic glass

T. W. Tang, Y. C. Chang, J. C. Huang, Q. Gao, J. S.C. Jang, Chi Y.A. Tsao

Research output: Contribution to journalArticlepeer-review

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The viscosity behavior and formability of the Au49Ag5.5Pd2.3Cu26.9Si16.3 bulk metallic glass within the supercooled liquid temperature region are examined using thermomechanical analyzer (TMA). The viscosity values of the Au-based BMG within 440-470 K lies within 2 × 107 and 1 × 108 Pa s, a reasonable viscosity level for macro- or micro-forming. The low working temperature of ∼450 K and the low working pressure less than 1 MPa, coupled with the sufficient hardness of ∼350 Hv, stress level of ∼1100 MPa, and anti-oxidation and anti-corrosion capability, would be highly promising for micro-forming or micro-imprinting for the micro-electro-mechanical systems.

Original languageEnglish
Pages (from-to)569-572
Number of pages4
JournalMaterials Chemistry and Physics
Issue number2-3
StatePublished - 15 Aug 2009


  • Amorphous materials
  • Thermal properties
  • Thermo-mechanical analysis (TMA)
  • Thermomechanical effects


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