Phase equilibria in the Pt-In-P system

C. F. Lin, Suzanne E. Mohney, Y. A. Chang

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Abstract

X-ray diffraction and electron probe microanalysis were used to determine the phase equilibria in the In-Pt-P system at 725 and 600°C. The observed binary phases were consistent with the assessed phase diagrams from the literature. Three ternary phases were found. The major difference between the 725 and 600°C isotherms was the phases in equilibrium with InP. At 600°C, the binary phases Pt3In7 and PtP2 were in equilibrium with InP. However, a tie-line transition from InP-Pt 3In7 to In-PtP2 was found between 600 and 725°C. The binary phases which were found to be stable in thin film form on InP were consistent with the phase equilibria data. From the tie-line change, the enthalpy of formation of PtP2 at 298 K was estimated to be -350±40 kJ/mol.

Original languageEnglish (US)
Pages (from-to)4398-4402
Number of pages5
JournalJournal of Applied Physics
Volume74
Issue number7
DOIs
StatePublished - Dec 1 1993

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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