Open AccessCalorical properties of equiatomic alloy of rubidium-bismuth system in the temperature range 293–1175 K
Author(s) -
С. В. Станкус,
I. V. Savchenko,
O. S. Yatsuk
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1359/1/012104
Subject(s) - liquidus , heat capacity , alloy , enthalpy , thermodynamics , materials science , enthalpy of fusion , rubidium , atmospheric temperature range , bismuth , caloric theory , overheating (electricity) , chemistry , metallurgy , melting point , composite material , physics , potassium , quantum mechanics
The caloric properties of the Rb 50 Bi 50 alloy were experimentally investigated in the temperature range 432.6-1176.8 K with the errors of 1.3% for enthalpy and 0.4% for heat capacity. The enthalpy change on melting was 8844 J mol -1 . It is shown that the heat capacity of the melt decreases linearly with overheating above the liquidus and significantly exceeds the heat capacity of the ideal solution. Tables of recommended values of caloric properties over the range from 298.15 K to 1175 K were developed.