Phase relations in the system (chromium + rhodium + oxygen) and thermodynamic properties of CrRhO3

Jacob, KT and Shekhar, Chander and Waseda, Y (2009) Phase relations in the system (chromium + rhodium + oxygen) and thermodynamic properties of CrRhO3. In: Journal of Chemical Thermodynamics, 41 (01). pp. 56-61.

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Abstract

Phase relations in the system (chromium + rhodium + oxygen) at T = 1273 K have been determined by examination of equilibrated samples by optical and scanning electron microscopy, powder X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS). Only one ternary oxide, CrRhO3 with rhombohedral structure (R (3) over bar, a = 0.5031, and c = 1.3767 nm) has been identified. Alloys and the intermetallics along the (chromium + rhodium) binary were in equilibrium with Cr2O3. The thermodynamic properties of the CrRhO3 have been determined in the temperature range (900 to 1300) K by using a solid-state electrochemical cell incorporating calcia-stabilized zirconia as the electrolyte. For the reaction.

Item Type:	Journal Article
Publication:	Journal of Chemical Thermodynamics
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier science.
Keywords:	CrRhO3;Gibbsfreeenergy;Enthalpy;Entropy;Oxygenpotential;Decomposition temperature;Phase diagram
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	25 Nov 2009 08:18
Last Modified:	19 Sep 2010 05:25
URI:	http://eprints.iisc.ac.in/id/eprint/18725

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