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Phase equilibria in the system Al-Rh

  • Physicochemical Materials Research
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Powder Metallurgy and Metal Ceramics Aims and scope

Abstract

Methods of differential thermal analysis, x-ray diffraction, microstructural analysis and electron probe microanalysis are used to study alloys of the Al-Rh system over the whole concentration range. It is established that the phase of equiatomic composition AlRh melts congruently at 2060°C and it has an extended range of homogeneity (45.1–54.2 at.% Rh). The solubility of aluminum in rhodium reaches 9 at.%, decreasing to 6 at.% at 850°C. Coordinates are determined for the eutectic point l ⇆ AlRh + 〈Rh〉 as 70 at.% Rh and 1715°C. The existence of intermediate phases, their crystal structure, and also the method of forming phases in the field of composition rich in aluminum given in publications are confirmed.

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Authors and Affiliations

  1. Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev

    V. G. Khoruzhaya, K. E. Kornienko, P. S. Martsenyuk & T. Ya. Velikanova

Authors
  1. V. G. Khoruzhaya
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  2. K. E. Kornienko
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  3. P. S. Martsenyuk
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  4. T. Ya. Velikanova
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Translated from Poroshkovaya Metallurgiya, Nos. 5–6(449), pp. 48–56, May–June, 2006.

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Khoruzhaya, V.G., Kornienko, K.E., Martsenyuk, P.S. et al. Phase equilibria in the system Al-Rh. Powder Metall Met Ceram 45, 251–258 (2006). https://doi.org/10.1007/s11106-006-0072-3

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  • DOI: https://doi.org/10.1007/s11106-006-0072-3

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