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Study of the enthalpies of formation in the Gd-Ni system

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Abstract

The enthalpies of formation of seven intermetallic phases of the Gd-Ni binary system were measured by a calorimetric method involving dissolution of the compounds in molten Al. These experimental values are compared with model predictions obtained from a tight-binding approach. It is shown that the relatively large difference between the energy levels of the two elements is a dominant factor in the determination of the formation energy. The highly asymmetric shape of the formation energy as a function of composition is discussed considering the particular shape of the density of states of these compounds.

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Authors and Affiliations

  1. Laboratoire de Thermodynamique et Physico-Chimie Métallurgiques, ENSEEG, Domaine Universitaire, B.P. 75-38402, Saint Martin d’Hères Cédex, France

    C. Colinet & A. Pasturel

  2. Philips Research Laboratories, 5600 JA, Eindhoven, The Netherlands

    K. H. J. Buschow

Authors
  1. C. Colinet
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  2. A. Pasturel
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  3. K. H. J. Buschow
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Colinet, C., Pasturel, A. & Buschow, K.H.J. Study of the enthalpies of formation in the Gd-Ni system. Metall Trans A 17, 777–780 (1986). https://doi.org/10.1007/BF02643852

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  • DOI: https://doi.org/10.1007/BF02643852

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