Formation of metastable phases during heat treatment of multilayers in the Al-Pt system

J. Lábár, András Kovács, P. Barna, Patrick Gas

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Abstract

This communication reports that several metastable phases form subsequently during heat treatment (up to 500 °C) of Al-rich Al-Pt multilayers. Besides the known a(amorphous)-Al2Pt, formation of two metastable phases with a composition close to Al5Pt was also observed in a transmission electron microscope. One of them corresponds to a phase given by space group P4 in Pearson's collection of intermetallic compounds. The other, a hexagonal phase (a=12.4 Å and c=26.2 Å) is the one that was observed in rapidly solidified Al-Pt alloys [L. Ma, R. Wang, and K. H. Kuo, J. Less-Common Met. 163, 37 (1990)]. Formation of these phases under different conditions is reported here.

Original languageEnglish
Pages (from-to)6545-6547
Number of pages3
JournalJournal of Applied Physics
Volume90
Issue number12
DOIs
Publication statusPublished - Dec 15 2001

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heat treatment
intermetallics
electron microscopes
communication

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

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Formation of metastable phases during heat treatment of multilayers in the Al-Pt system. / Lábár, J.; Kovács, András; Barna, P.; Gas, Patrick.

In: Journal of Applied Physics, Vol. 90, No. 12, 15.12.2001, p. 6545-6547.

Research output: Contribution to journalArticle

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