Effect of grain size on low-temperature electrical resistivity and thermal conductivity of pure magnesium
X Tong, G You, Y Ding, H Xue, Y Wang, W Guo - Materials Letters, 2018 - Elsevier
X Tong, G You, Y Ding, H Xue, Y Wang, W Guo
Materials Letters, 2018•ElsevierThe electrical resistivity and thermal conductivity of as-cast pure Mg with different grain sizes
prepared by ultrasonic treatment were measured in the temperature range of 2–320 K. The
grain size has little effect on residual electrical resistivity, but the different samples exhibit
different temperature coefficients of resistance. The maximum of thermal conductivity 665
W/(m· K) appears at∼ 20 K where the different grain sizes shows the biggest difference.
Less effect of grain size on the thermal conductivity can be observed at room temperature.
prepared by ultrasonic treatment were measured in the temperature range of 2–320 K. The
grain size has little effect on residual electrical resistivity, but the different samples exhibit
different temperature coefficients of resistance. The maximum of thermal conductivity 665
W/(m· K) appears at∼ 20 K where the different grain sizes shows the biggest difference.
Less effect of grain size on the thermal conductivity can be observed at room temperature.
Abstract
The electrical resistivity and thermal conductivity of as-cast pure Mg with different grain sizes prepared by ultrasonic treatment were measured in the temperature range of 2–320 K. The grain size has little effect on residual electrical resistivity, but the different samples exhibit different temperature coefficients of resistance. The maximum of thermal conductivity 665 W/(m·K) appears at ∼20 K where the different grain sizes shows the biggest difference. Less effect of grain size on the thermal conductivity can be observed at room temperature.
Elsevier
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