Characterization and thermal expansion of Sr2Fe1-xInxMoO6 (x=0.0, 0.1 and 0.4 wt. %) double perovskites

International Conference on Materials Science and Technology 2012

Markandeya, Y.^1 ; Kumar, V Prashanth^1 ; Reddy, C Vishnuvardhan^1 ; Bhikshamaiah, G.^1

Department of Physics, Osmania University, Hyderabad

500007, India^1

关键词: Average values;    Double perovskite oxide;    Double perovskites;    High temperature;    Reducing atmosphere;    Sol-gel growth;    Temperature range;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/73/1/012069/pdf
DOI  :  10.1088/1757-899X/73/1/012069

来源: IOP

【 摘 要 】

Double perovskite oxides of Sr2Fe1-xInxMoO6 (x 0.0, 0.1 and 0.4 wt. %.) were prepared by sol-gel growth followed by annealing under reducing atmosphere conditions of 10% H2/Ar flow. These samples were characterized by X-ray diffraction, Scanning Electron Microscopy and Electron Spin Resonance studies. High temperature thermal expansion studies were carried out using Netzsch 402PC dilatometer in the temperature range from 40 to 400°C. The coefficient of thermal expansion (α) was calculated at different temperature for all the samples. The value of α was found to increase with increase of temperature while average value of coefficient of thermal expansion found to decrease with indium composition in SFIMO materials.