Premium
Thermal expansion and enhanced heat transfer in high‐entropy alloys
Author(s) -
Lu ChiehLien,
Lu ShengYi,
Yeh JienWei,
Hsu WenKuang
Publication year - 2013
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889813005785
Subject(s) - thermal diffusivity , thermodynamics , materials science , heat transfer , thermal expansion , thermal , mean free path , entropy (arrow of time) , composite material , physics , optics , scattering
Alloys made from equimolar mixtures of more than five elements exhibit an improved thermal diffusivity at elevated temperatures, and the improvement reaches 20% at 423 K and 50% at 573 K. This phenomenon is identified from the lengthened mean free path upon thermal expansion, and lengthening scales with lattice dilation over a wide range of temperatures.