Thermal conductivity of the amorphous alloy Fe₄₀Ni₄₀P₁₄B₆between 80 and 300 K

Abstract

The thermal conductivity of the amorphous alloy Fe40Ni40P14B6 is investigated with the aim to separate out the lattice contribution and to compare it with that of amorphous dielectrics. The problems of the influence of the radiative transfer of heat between the sample and its environment, which causes errors in the determination of thermal conductivity, are discussed. The authors found that the temperature dependence of the lattice thermal conductivity of the alloys is qualitatively the same as that of amorphous dielectrics.

Influence of microstructure on the thermal conductivity of magnetoresistive La0.7Ca0.3MnO3/Mn3O4 manganite/insulating oxide polycrystalline bulk composites

“…The thermal conductivity was measured using the stationary heat flux method in the temperature range of 5-300 K. 13,14 The temperature difference along the sample was in the range of 0.1-0.5 K. Particular care was taken to avoid a parasitic heat transfer between the sample and its environment. The typical measurement error is below 2%, and the surplus error estimated from the scatter in the measurement points does not exceed 0.3%.…”

Czochralski Crystal Growth, Thermal Conductivity, and Magnetic Properties of PrxLa1−xAlO3, where x = 1, 0.75, 0.55, 0.40, 0

“…This is in contrast to the single Thermal conductivity. The thermal conductivity was measured using the stationary heat flux method in the temperature range 5 -300 K. The experimental setup and the measurement procedure have been described in detail in 28,29 . The temperature gradient along the sample was in the range 0.1 -0.5 K.…”

Magnetotransport study of MgB2superconductor

“…the sample was placed inside the cylindrical screen and the temperature of the screen was electronically stabilized at the level of the sample. Moreover, all current and voltage leads were thermally anchored to the screen [24]. The radiation and gas conductivity losses are negligible, being less than 0.1% even at 300 K. The total measurement error of absolute values of thermal conductivity is estimated to be below 2%.…”