Heat Capacity of Nickel–Phosphorus Eutectic Melts

• Published in: High temperature Vol. 57; no. 2; pp. 177 - 181
• Main Authors: Kamaeva, L. V., Lad’yanov, V. I.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.03.2019; Springer Nature B.V
• Subjects: Atoms and Molecules in Strong Fields; Classical and Continuum Physics; Dependence; Eutectics; Industrial Chemistry/Chemical Engineering; Laser Matter Interaction; Liquidus; Materials Science; Melting points; Melts; Nickel base alloys; Phosphorus; Physical Chemistry; Physics; Physics and Astronomy; Specific heat; Thermophysical Properties of Materials
• ISSN: 0018-151X; 1608-3156
• DOI: 10.1134/S0018151X19020068

Ni–P alloys containing phosphorus from 15 to 23 at %, which is close to the eutectic concentration, are studied with differential scanning calorimetry. The heat capacity C P is calculated at a constant pressure for the melts from the obtained data. The C P values of the alloys at temperatures above their melting points at 50°C are 0.53–0.59 J/(g K) and are in good agreement with the literature heat capacity values for liquid nickel and Ni 3 P. The C P of all of the melts linearly increases from the Т L liquidus temperature to 1400°С. There is a maximum on the concentration dependence of C P at the eutectic concentration.