• Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      System Pt-Rh-O; phase diagram; thermodynamic properties; Pt-Rh alloys; oxidation; stability field

    • Abstract


      The composition of Pt-Rh alloys that co-exist with Rh2O3 in air have been identified by experiment at 1273 K. The isothermal sections of the phase diagram for the ternary system Pt-Rh-O at 973 K and 1273 K have been computed based on experimentally determined phase relations and recent thermodynamic measurements on Pt1−XRhX alloys and Rh2O3. The composition dependence of the oxygen partial pressure for the oxidation of Pt1−XRhX alloys at different temperatures, and temperature for the oxidation of the alloys in air are computed. The diagrams provide quantitative information for optimization of the composition of Pt1−XRhX alloys for high temperature application in oxidizing atmospheres.

    • Author Affiliations


      K T Jacob1 Shashank Priya1 Yoshio Waseda1 2

      1. Department of Metallurgy, Indian Institute of Science, Bangalore - 560 012, India
      2. Research Centre for Metallurgical Process Engineering, Institute for Advanced Materials Processing, Tohoku University, Sendai - 980-77, Japan
    • Dates

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.