Temperature dependent DC electrical conductivity
studies of GeO2 substituted lead vanadate glass systems xGeO2(50-x)PbO:50V2O5 (x = 5, 10, 15 mole%) were carried out and the results are reported. X-ray
diffraction results reveal that all samples are perfect amorphous in nature.
DSC results indicate that the substituent GeO2 is replacing PbO in
the glass network in such a way that the eutectic composition is maintained. DC
electrical conductivity studies of the glass samples indicate that the systems
are characterized by different activation energies in different temperature ranges
which in turn depend on the annealing temperature. These results are
interpreted in terms of temperature dependent microstructural changes in these
glass systems.
References
[1]
Ghosh, A. (1988) Memory Switching in Bismuth-Vanadate Glasses. Journal of Applied Physics, 64, 2652-2655. https://doi.org/10.1063/1.341605
[2]
Hirashima, H., Ide, M. and Yoshida, Ts. (1986) Memory switching of V2O5-TeO2 Glasses. Journal of Non-Crystalline Solids, 86, 327-335.
https://doi.org/10.1016/0022-3093(86)90021-9
[3]
Mustafa, Y.M., Mansour, E., El-Damrawi, G.M., Abd El-Maksoud, S. and Doweidar, H. (2001) Memory Switching of Fe2O3-BaO-V2O5 Glasses. Physica B, 305, 242-249
https://doi.org/10.1016/S0921-4526(01)00622-6
[4]
Sujatha, B. and Reddy, C.N. (2006) Electrical Switching Behaviour in Lead Phosphovanadate Glasses. Turkish Journal of Physics, 30, 189-195.
[5]
Szu, S. and Lu, S.G. (2007) AC Impedance Studies of Image Containing Glasses. Physica B, 391, 231-237. https://doi.org/10.1016/j.physb.2006.09.025
[6]
Ghosh, A. and Sen, S. (1999) Structure and Other Physical Properties of Magnesium Vanadate Glasses. Journal of Non-Crystalline Solids, 258, 29-33.
https://doi.org/10.1016/S0022-3093(99)00562-1
[7]
Tejeswararao, P., Ramesh, K.V. and Sastry, D.L. (2012) Electrical and Spectroscopic Studies of the CdO Substituted Lead Vanadate Glass System vs Crystalline Form. New Journal of Glass and Ceramics, 2, 34-40.
[8]
Tejeswararao, P., Ramesh, K.V. and Sastry, D.L. (2016) ESR and DC Electrical Properties of Bi2O3-PbO-V2O5 Glass System. Physics and Chemistry of Glasses— European Journal of Glass Science and Technology Part B, 57, 279-284.
[9]
Khan, M.N., Khawaja, E.E., Save, D., Kutub, A.A. and Hogarth, C.A. (2007) Electrical Conductivity of Semiconducting V2O5-GeO2 Glasses. International Journal of Electronics, 56, 395-401.
[10]
Topping, J.A. (1974) Elastic Properties of Glasses in the System PbO-GeO2. Journal of the American Ceramic Society, 57, 455.
[11]
Baiocchi, E., Bettinelli, M., Motenero, A. and Disipio, A. (1982) New Phases in Equimolar PbO-V2O5 System. Journal of Solid State Chemistry, 43, 63.
https://doi.org/10.1016/0022-4596(82)90215-8
[12]
Calestani, G., Andreeti, G.D., Montenero, A. and Bettinelli, M. (1985) Structures of Metastable Lead Metavanadates: The Orthorhombic PbV2O6 (III) Modification. Acta Crystallographica Section C, C41, 179-182.
https://doi.org/10.1107/S0108270185003237
[13]
Ramesh, K.V. (2000) Thermal, Electrical and Spectroscopic Studies of CuO, ZnO and TiO2 Substituted for PbO in Eutectic Lead Vanadate Glass System. Ph.D. Thesis, Andhra University, Visakhapatnam.
[14]
Kozmidis-Petrovic, A.F. (2010) Theoretical Analysis of Relative Changes of the Hruby, Weinberg, and Lu-Liu Glass Stability Parameters with Application on Some Oxide and Chalcogenide Glasses. Themochimica Acta, 499, 54-60.
https://doi.org/10.1016/j.tca.2009.10.023
[15]
Murugan, G.S. and Ohishi, Y. (2004) TeO2-BaO-SrO-Nb2O5 Glasses: A New Glass System for Waveguide Devices Applications. Journal of Non-Crystalline Solids, 341, 86-92. https://doi.org/10.1016/j.jnoncrysol.2004.04.006
