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, ρ(T) = ρ0 + Aln(T) + BT2 + CT3 + DT, decrease as temperature rises, manifesting that they gradually becom...

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Veröffentlicht in:AIP advances 2012-03, Vol.2 (1), p.012111-012111-5
Hauptverfasser: Chen, Swe-Kai, Kao, Yih-Farn
Format: Artikel
Sprache:eng
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Zusammenfassung: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, ρ(T) = ρ0 + 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.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.3679072