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Calorimetric investigations of a gold-nickel alloy. II. The heat capacity at high temperatures and the entropy of formation by R.A Oriani is a Engineering article available to read on EtoBox.

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The literature of measurements of the heat capacity of alloys is critically reviewed. A Bunsen ice calorimeter is employed to measure the cumulative enthalpy difference between the solid solution Auo.~rrNi~.~a3 and the corresponding weights of the pure metals; differentiation of the temperature curve yields the deviation of the heat capacity of the alloy from the Kopp-Neumann rule. The positive value of this deviation and the large magnitude of the vibrational entropy of solution are related to the loosening of the lattice that accompanies formation of the solid solution. ## MESURES CALORIMETRIQUES SUR UN ALLIAGE OR-NICKEL. II. CAPACITE CALORIFIQUE A HAUTES TEMPERATURES ET ENTROPIE DE FORMATION Discussion de la litterature sur les mesures de capacite calorifique des alliages. Emploi d'un calorimetre de Bunsen pour mesurer les differences d'enthalpie entrie les solutions solides Aug.~~rNi".483 et les metaux purs correspondants, en fonction de la temperature. La capacite calorifique de cet alliage ne suit pas la regle des melanges. La valeur positive de l&art et la grande entropie de vibration de cette solution sont attribuees au relachement du reseau qui accompagne la formation de l

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Author

R.A Oriani

Publisher

Elsevier Science; Elsevier ; University of Toronto Press; Elsevier BV (ISSN 0001-6160)

Published

1955

Language

EN

Field

Engineering (Physical Sciences)