V.S. Sudavtsova
M.O. Shevchenko
M.I. Ivanov
V.G. Kudin
A.A. Bondar
V.K. Nosenko
Affiliation:
Institute for Problems of Materials Science of the NAS of Ukraine
Project: Scientific book
Year: 2021
Publisher: PH "Naukova Dumka"
Pages: 198
DOI:
ISBN: 978-966-00-1772-6
Language: Ukrainian
How to Cite:
Sudavtsova, V.S., Shevchenko, M.O., Ivanov, M.I., Kudin, V.G. (2021). Thermodynamic Properties of Alloys of Double and Triple Systems, Formed by Aluminum, Transitional and Rare-Earth Metals. Kyiv, Naukova Dumka. 198 p. [in Ukraine].
Abstract:
The monograph establishes for the first time by the method of calorimetry at 1410–1880 K the partial and integral enthalpies of mixing of liquid alloys of double systems Mn(Fe, Co, Ni)–Sc, Mn(Co, Ni)–Y, Al–Sc(Co, Pr, Nd, Sm) in wide intervals of concentrations and ternary systems Al–Co–Sc, Al–Ni– Sc in limited intervals. It is established that the minima of integral enthalpies of melting of the investigated systems are in the range from 3 (Mn–Y) to 47 kJ/mol (Al–Sm). The alloys of the Mn–Sc system are investigated by differential thermal analysis. Programs are developed to optimize the activities of components, Gibbs energies, alloy mixing entropies, curves of liquidus and solidus of state diagrams of binary systems according to the model of ideal associated solutions. Comparison of the obtained results with reliable data given in the literature showed that they are consistent within the experimental error. Programs are developed for estimating the thermodynamic properties of tertiary system melts on the basis of similar data for boundary binary systems based on the Kohler, Redlich–Kister–Mujian models, and so on. A critical analysis of the thermodynamic properties of melts of Mn(Sc, Al)–Me dual systems is performed taking into account size and electrochemical factors, as well as the Miedema’s model. The authors analyze the results of their own research in the literature on the thermodynamic properties of compounds, melts of double and triple systems and identify the most reliable.
Intended for researchers and technicians, teachers, graduate students and senior students specializing in materials science and related fields.
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