Crystallization kinetics of the Cu43Zr43Al7Ag7 amorphous alloy

S. O. Park, J. C. Lee, Y. C. Kim, E. Fleury, D. S. Sung, D. H. Kim

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The crystallization kinetics of the Cu43Zr43Al7Ag7 (at.%) amorphous alloy was studied by means of differential scanning calorimetry (DSC) in the continuous heating and isothermal annealing modes. In the case of continuous heating, the activation energy for crystallization corresponding to the first exothermal peak was significantly lower than that of the second peak. The isothermal kinetic, analyzed using the Johnson-Mehl-Avrami equation, yielded values of the Avrami exponents in the range 1.74-2.64, which implied that the first crystallization was governed by a three-dimensional diffusion-controlled growth.

Original languageEnglish
Pages (from-to)561-564
Number of pages4
JournalMaterials Science and Engineering A
Volume449-451
DOIs
Publication statusPublished - 2007 Mar 25

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Keywords

  • Amorphous alloy
  • Crystallization
  • Kinetic
  • Phase separation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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