Thermal and electrical properties of 60V2O5â€�??5P2O5â€�??(35−ð�?��?)B2O3â€�?�ð�?�¥CeO2(1 â‰�? ð‘�? â‰�? 5) glasses

Bulletin of materials science

R V Barde¹  S A Waghuley² 

[1] Department of Engineering Physics, H.V.P.M. College of Engineering & Technology, Amravati 444 605, India$$Department of Engineering Physics, H.V.P.M. College of Engineering & Technology, Amravati 444 605, IndiaDepartment of Engineering Physics, H.V.P.M. College of Engineering & Technology, Amravati 444 605, India$$;Department of Physics, Sant Gadge Baba Amravati University, Amravati 444 602, India$$Department of Physics, Sant Gadge Baba Amravati University, Amravati 444 602, IndiaDepartment of Physics, Sant Gadge Baba Amravati University, Amravati 444 602, India$$

关键词: Glasses;    electrical and thermal properties;    impedance spectroscopy.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The samples of composition 60V₂O₅â€�??5P₂O₅â€�??(35−ð�?��?)B₂O₃â€�?�ð�?�¥CeO₂, ð‘�? = 1, 2, 3, 4 and 5 mol% were prepared by the melt-quench method. The prepared samples were characterized by X-ray diffraction, thermogravimetric-differential thermal analysis and impedance spectroscopy. The activation energies were evaluated using glass transition temperature (ð‘�??_g) and peak temperature of crystallization (ð‘�??_c). The dependence of activation energy on composition was discussed. AC conductivity of samples has been analysed. Electrical conductance and capacitance were measured over a frequency range of 20 Hzâ€�??1 MHz and a temperature range of 303â€�??473 K. At room temperature, maximum value of electrical conductivity was observed to be 0.0024 S cm^âˆ�?1 for ð‘�? = 1.The samples show semiconducting features predominantly based on an ionic mechanism.

【 授权许可】

Unknown