Open AccessRoom-temperature coefficient of thermal expansion of metals derived from the elastic constants
Author(s) -
Н. А. Палий,
O. K. Belousov
Publication year - 2020
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 - 10.1088/1742-6596/1431/1/012042
Subject(s) - thermal expansion , debye model , shear modulus , bulk modulus , materials science , poisson's ratio , thermodynamics , elastic modulus , modulus , lattice constant , poisson distribution , young's modulus , composite material , physics , mathematics , statistics , diffraction , optics
Room-temperature coefficients of thermal expansion (CTE), α, of 27 metals and 2 semi-metals (Si and Ge) are derived from elastic constants (Young modulus, shear modulus, Poisson’s ratio) coupled with a Debye treatment of the vibrating lattice. Theoretical values of αcalc show good agreement with the experimental ones.