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We investigate the DC transport properties of 60V2O5–5P2O5–(35-x)B2O3xDy2O3 (x = 0.4, 0.6, 0.8, 1.0 and 1.2 mol%) glasses as function of temperature which were prepared using the conventional melt-quenching method. These glasses are characterised by thermo gravimetric-differential thermal analysis (TG-DTA). Activation energy (EDC) is obtained from Arrhenius plots of temperature-dependent DC conductivity, and it is found to be 0.30 eV for high conducting glass. In order to understand the role of Dy2O3 in these glasses, the density and molar volume are investigated. The results show that molar volume of the glass increases with the increasing of Dy2O3 concentration. The ionic conductivity is found to be dominant over the electronic conductivity and varies between 82% and 96%.


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Transport and physical properties of V2O5–P2O5–B2O3 glasses doped with Dy2O3

Show Author's information R. V. BARDEaS. A. WAGHULEYb,*( )
Department of Engineering Physics, Shri Hanuman Vyayam Prasarak Mandal’s College of Engineering and Technology, Amravati 444 605, India
Department of Physics, Sant Gadge Baba Amravati University, Amravati 444 602, India

Abstract

We investigate the DC transport properties of 60V2O5–5P2O5–(35-x)B2O3xDy2O3 (x = 0.4, 0.6, 0.8, 1.0 and 1.2 mol%) glasses as function of temperature which were prepared using the conventional melt-quenching method. These glasses are characterised by thermo gravimetric-differential thermal analysis (TG-DTA). Activation energy (EDC) is obtained from Arrhenius plots of temperature-dependent DC conductivity, and it is found to be 0.30 eV for high conducting glass. In order to understand the role of Dy2O3 in these glasses, the density and molar volume are investigated. The results show that molar volume of the glass increases with the increasing of Dy2O3 concentration. The ionic conductivity is found to be dominant over the electronic conductivity and varies between 82% and 96%.

Keywords:

transport properties, melt quenching, Arrhenius plot, glasses
Received: 26 February 2013 Revised: 02 April 2013 Accepted: 26 April 2013 Published: 07 September 2013 Issue date: September 2013
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Publication history

Received: 26 February 2013
Revised: 02 April 2013
Accepted: 26 April 2013
Published: 07 September 2013
Issue date: September 2013

Copyright

© The author(s) 2013

Acknowledgements

Authors are thankful to the head of Department of Physics, Sant Gadge Baba Amravati University, Amravati, and the principal of Shri Hanuman Vyayam Prasarak Mandal’s College of Engineering and Technology, Amravati, for providing necessary facilities.

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