In situ formation of two amorphous phases by liquid phase separation in Y-Ti-Al-Co alloy

B. J. Park, H. J. Chang, D. H. Kim, W. T. Kim

Research output: Contribution to journalArticle

142 Citations (Scopus)

Abstract

The Y28 Ti28 Al24 Co20 alloy undergoes metastable liquid phase separation in the under-cooled liquid state and subsequently solidifies into two different Y-rich and Ti-rich amorphous phases. Secondary phase separation occurs due to the supersaturation of the primary separated liquids as the temperature decreases. Depending on the degree of local undercooling, a wide range of length scale of the microstructure is observed. The characteristic length scale of the two amorphous phases is ~250 nm near the air side of the ribbon, and ~25 nm near the wheel side of the ribbon.

Original languageEnglish
Pages (from-to)6353-6355
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number26
DOIs
Publication statusPublished - 2004 Dec 27

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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