Near-constant resistivity in 4.2-360 K in a B2 Al2.08CoCrFeNi

Near-constant electrical resistivity over 4.2 to 360 K in a pseudo-B2 Al2.08CoCrFeNi is reported. Absolute values of coefficients in electrical resistivity equation as a function of temperature, rho(T) = rho(0) + Aln(T) + BT2 + CT3 + DT, decrease as temperature rises, manifesting that they gradually become less while temperature increases. Overall average temperature coefficient of resistivity (TCR) in 4.2 to 360 K is 72 ppm/K, with a half-parabolic shape in its resistivity-temperature curve that is similar to Manganin. It shows that the phonon effect on this alloy keeps nearly the same through this temperature range. Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. [doi: 10.1063/1.3679072]