Investigation of the thermodynamic properties of Cu–Ni alloys obtained by electrodeposition or by casting

Autor:	T.N. Vorobyova, B.V. Kuznetsov, Vassili Glibin
Rok vydání:	2005
Předmět:	Chemistry Mechanical Engineering Alloy Enthalpy Metals and Alloys Thermodynamics Electrolyte engineering.material Entropy of mixing Enthalpy of mixing Standard enthalpy of formation Mechanics of Materials Materials Chemistry engineering Dissolution Solid solution
Zdroj:	Journal of Alloys and Compounds. 386:139-143
ISSN:	0925-8388
DOI:	10.1016/j.jallcom.2004.05.052
Popis:	The enthalpies of alloy formation in the copper–nickel system have been determined by reaction calorimetry of dissolution at 298 K and it has been shown that this method can be applied for the investigation of electrodeposited alloys, which often are irreversible and representing metastable systems. It has been demonstrated that electrochemical Cu–Ni plating from diphosphate electrolyte under conditions leading to a deposition of a solid copper–nickel solution allows it to produce a thermochemical analogue of a cast alloy. The results obtained indicate that a model of the subregular solution type still provides a reasonable description of the thermodynamic functions in this system. The activity of the components over the entire concentration range was calculated using experimental data and the relationship between partial enthalpy of mixing and partial excess entropy of dissolved components in infinitely dilute solutions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::705d0c1bc2daae23260f419a800339ad https://doi.org/10.1016/j.jallcom.2004.05.052 Zobrazit plný text záznamu Full Text from ScienceDirect