Alloy-oxide equilibria in the system Pt-Rh-O

K. T. Jacob; Shashank Priya; Yoshio Waseda

doi:10.1007/BF02745024

Alloy-oxide equilibria in the system Pt-Rh-O

K. T. Jacob, Shashank Priya, Yoshio Waseda

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

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 Pt_1-XRh_X alloys and Rh₂O₃. The composition dependence of the oxygen partial pressure for the oxidation of Pt_1-XRh_X 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 Pt_1-XRh_X alloys for high temperature application in oxidizing atmospheres.

Original language	English (US)
Pages (from-to)	99-103
Number of pages	5
Journal	Bulletin of Materials Science
Volume	21
Issue number	1
DOIs	https://doi.org/10.1007/BF02745024
State	Published - 1998

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials

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10.1007/BF02745024

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title = "Alloy-oxide equilibria in the system Pt-Rh-O",

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 = "Jacob, {K. T.} and Shashank Priya and Yoshio Waseda",

year = "1998",

doi = "10.1007/BF02745024",

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journal = "Bulletin of Materials Science",

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T1 - Alloy-oxide equilibria in the system Pt-Rh-O

AU - Jacob, K. T.

AU - Priya, Shashank

AU - Waseda, Yoshio

PY - 1998

Y1 - 1998

N2 - 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.

AB - 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.

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SP - 99

EP - 103

JO - Bulletin of Materials Science

JF - Bulletin of Materials Science

IS - 1

ER -

Alloy-oxide equilibria in the system Pt-Rh-O

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