Thermal Constants of Binary Oxides of Pr2O3-WO3 and Nd2O3-CuO.

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The thermal constants (thermal diffusivity, specific heat, thermal conductivity) of binary oxides (Pr2O3-WO3, Nd2O3-CuO) consisting of a mixture of rare-earth metal oxides are measured in the range of -150°C to 800°C by the laser flash method. For the oxide Pr2O3 WO3, two kinds of specimens are synthesized by changing the ratio of the components Pr2O3 and WO3. For the oxide Nd2O3-CuO, four kinds of specimens are synthesized by changing oxygen concentration during a firing, and another specimen is synthesized by doping CeO2. The temperature dependence on the thermal constants of these specimens is investigated and the results are indicated in Figs. 5-10.
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