Abstract
The crystallographic data of many rare earths (RE) intermetallic compounds are well established but in most cases their thermodynamic properties are not known. Accurate thermodynamic data are valuable not only as a quantitative measure of the relative stability of alloys but as basic informations for testing theories of the metallic state. We have therefore developed a method suitable for the direct determination of the heats of formation and heats of fusion based on Using a conventional differential thermal analysis apparatus. If the heat of formation of a compound can be measured by a reaction involving direct combination of the elements, the results are likely to be more accurate than if an indirect method is employed, such as vapour pressure or electromotive force measurements or solution calorimetry. Another advantage of the direct method compared with other traditional techniques is the speed with which the measurements can be carried out:a single determination taking no more than one or two hours.
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Palenzona, A., Cirafici, S. (1974). Thermodynamic Properties of Rex3, AuCu3-Type, Intermetallic Compounds. In: Porter, R.S., Johnson, J.F. (eds) Analytical Calorimetry. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-4509-2_57
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DOI: https://doi.org/10.1007/978-1-4757-4509-2_57
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