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Materials of β-Cu2−xSe were fabricated by using hydrothermal synthesis followed by evacuating-and-encapsulating sintering. These materials were then characterized using powder X-ray diffraction, field-emission scanning electron micrograph, electronic and thermal transport. Thermal conductivity measurements were carried out utilizing transient plane source (TPS) techniques using a thermal constants analyzer. The thermal conductivity of β-Cu2−xSe at room temperature is found to be larger than that ...
The effects of the substitution of Ca with Gd in the Ca1-xGdxMnO3-delta system were investigated. It was determined that the partial substitution of Gd resulted in decreased resistivity and increased thermal conductivity. The change in these properties was attributed to electronic effects....
This article investigates the effect of aluminum doping on the thermal conductivity and other thermoelectric properties of nanostructured Zn1•XAlXTe (0 ≤ X ≤ 0.15) for a temperature range of 300 K – 600 K. The thermal conductivity was measured using the transient plane source (TPS) technique by a thermal constants analyzer. It was found that with increasing doping of aluminum, the thermal conductivity decreased, and with increasing temperature thermal conductivity also decreased. The decreasing of thermal ...
CaMnO3 has been proposed for use in thermoelectric materials, due to its favourable thermoelectric properties. In this article, the effect of doping using bismuth and silicon to replace calcium and manganese respectively has been studied. Important properties of the doped compounds measured include thermopower, thermal conductivity, and electrical resistance. Different amounts of dopant are used, and it was determined that the compound Ca0.98Bi0.02Mn0.98Si0.02O3 has the highest ...
