Open AccessStructure and thermal expansion of liquid bismuth
Author(s) -
S. Mudry,
I. Shtablavyi,
Uliana Liudkevych,
Szymon Winczewski
Publication year - 2015
Publication title -
materials science poland
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 32
eISSN - 2083-1331
pISSN - 2083-134X
DOI - 10.1515/msp-2015-0100
Subject(s) - thermal expansion , supercooling , materials science , superheating , thermodynamics , atmospheric temperature range , thermal , melting temperature , bismuth , composite material , metallurgy , physics
Experimental structural data for liquid Bi were used for estimation of the main structure parameters as well as the thermal expansion coefficient both in supercooled and superheated temperature ranges. It was shown that the equilibrium melt had a positive thermal expansion coefficient within a temperature range upon melting and a negative one at higher temperatures. The former was related to structure changes upon melting, whereas the latter with topologic disordering upon further heating. It was found that the superheated melt had a negative thermal expansion coefficient. The results obtained from structural data were compared with the thermal expansion coefficient calculated from the data of density for liquid Bi