Improvement of glass-forming ability and phase separation in Cu-Ti-rich Cu-Ti-Zr-Ni-Si bulk metallic glasses

E. S. Park, H. J. Chang, Do Hyang Kim

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Present study reports improvement of glass-forming ability (GFA) and phase separation in Cu-Ti-rich Cu-Ti-Zr-Ni-Si bulk metallic glasses (BMGs) by tailoring the constituent elements. The MA of metalloid element, Sn having relatively large negative enthalpy of mixing can lead to improve GFA (up to 8 mm in diameter) as well as thermal stability (up to ΔTx = 48 K) by optimizing the substitution element. And the addition of elements having relatively large positive enthalpy of mixing (partial substitution of Zr or Ti with Y) can lead to the liquid state phase separation in Cu-Ti-Sn-Zr-Ni-Si BMG, although the addition lead to drastic deterioration of the GFA.

Original languageEnglish
JournalJournal of Alloys and Compounds
Volume504
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2010 Aug 1

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Metallic glass
Phase separation
Chemical elements
Glass
Enthalpy
Substitution reactions
Metalloids
Deterioration
Thermodynamic stability
Liquids

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "Present study reports improvement of glass-forming ability (GFA) and phase separation in Cu-Ti-rich Cu-Ti-Zr-Ni-Si bulk metallic glasses (BMGs) by tailoring the constituent elements. The MA of metalloid element, Sn having relatively large negative enthalpy of mixing can lead to improve GFA (up to 8 mm in diameter) as well as thermal stability (up to ΔTx = 48 K) by optimizing the substitution element. And the addition of elements having relatively large positive enthalpy of mixing (partial substitution of Zr or Ti with Y) can lead to the liquid state phase separation in Cu-Ti-Sn-Zr-Ni-Si BMG, although the addition lead to drastic deterioration of the GFA.",
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Improvement of glass-forming ability and phase separation in Cu-Ti-rich Cu-Ti-Zr-Ni-Si bulk metallic glasses. / Park, E. S.; Chang, H. J.; Kim, Do Hyang.

In: Journal of Alloys and Compounds, Vol. 504, No. SUPPL. 1, 01.08.2010.

Research output: Contribution to journalArticle

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