實物特徵: Thermal diffusivity and conductivity of La 0.7Ca 0.3-xSr xMnO 3 (x= 0 to 0.10)

Thermal diffusivity and conductivity of La 0.7Ca 0.3-xSr xMnO 3 (x= 0 to 0.10)

We report the room temperature thermal conductivity ? and thermal diffusivity ? of polycrystalline La 0.7Ca 0.3-xSr xMnO 3 for x = 0 to 0.1. The samples were prepared by heating at 1220 and 1320�C. The insulator-metal transition temperature, T IM and thermal diffusivity increased with Sr content. Ph...

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書目詳細資料
Main Authors:	Alwi H.A., Ewe L.S., Ibrahim Z., Ibrahim N.B., Abd-Shukor R.
其他作者:	6507541141
格式:	Conference paper
出版:	2023
主題:	Manganites Microstructure Thermal diffusivity Electric conductivity Manganese oxide Technology Electrical conductivity Electronic contributions Grain size Insulator-metal transition temperature Polycrystalline Room temperature Thermal conductivity
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實物特徵
總結:	We report the room temperature thermal conductivity ? and thermal diffusivity ? of polycrystalline La 0.7Ca 0.3-xSr xMnO 3 for x = 0 to 0.1. The samples were prepared by heating at 1220 and 1320�C. The insulator-metal transition temperature, T IM and thermal diffusivity increased with Sr content. Phonon was the dominant contributor to thermal conductivity and the electronic contribution was less than 1%. Enhancement of electrical conductivity ? and thermal diffusivity for x ? 0.08 was observed in both series of samples. The grain size of the samples (28 to 46 ?m) does not show any affect on the thermal and electrical properties. � (2012) Trans Tech Publications.

Thermal diffusivity and conductivity of La 0.7Ca 0.3-xSr xMnO 3 (x= 0 to 0.10)

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