Melt quenched “SnO2(50-x)PbO:50V2O5” glass system containing x = 5, 10, 15 in molar ratio has
been investigated. Effects of heating rate, glass transition, crystallization, melting temperature
and infrared spectra of SnO2 substituted PbO-V2O5 glass system are reported. XRD results show
that perfect vitrification has been achieved for all the glass samples after annealing at 150°C. DSC
results have indicated that eutectic composition of the lead metavanadate has been maintained for
all the glass systems up to 15 mole% of substitution. IR spectra for a SnO2 substitution of 5 mole%
V=O stretching frequency occur at 966 cm-1 without appearance of any additional peak. But for 10
mole% and 15 mole% SnO2 substituted samples, additional peaks appear at 1023 and 1005 cm-1
indicating the effect of SnO2 in the vanadate crystalline matrix such that there is an elongation of
V=O bond. Since the crystalline matrix is affected, we can expect similar effect in the glass matrix
also.
References
[1]
Dimitrov, V. and Dimitriev, Y. (1990) Structure of Glasses in PbO-V2O5 System. Journal of Non-Crystalline Solids, 122, 133-138. http://dx.doi.org/10.1016/0022-3093(90)91058-Y
[2]
Hayakawa, S., Yoko, T. and Sakka, S. (1995) IR and NMR Structural Studies on Lead Vanadate Glasses. Journal of Non-Crystalline Solids, 183, 73-84. http://dx.doi.org/10.1016/0022-3093(94)00652-0
[3]
Dimitrov, V. (1995) Structural Changes in Vitreous Vanadate Systems. Journal of Non-Crystalline Solids, 192, 183- 186. http://dx.doi.org/10.1016/0022-3093(95)00349-5
[4]
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.
[5]
Oz, B., Kabaci, I., Ovecoglu, M.L. and Ozen, G. (2007) Thermal Properties and Crystallization Behavior of Some TeO2-K2O Glasses. Journal of the European Society, 27, 1823-1827.
[6]
Murugan, G.S. and Ohishi, Y.J. (2004) TeO2-BaO-SrO-Nb 2O5 Glasses: A New Glass for Waveguide Device Applications. Journal of Non-Crystalline Solids, 341, 86-92. http://dx.doi.org/10.1016/j.jnoncrysol.2004.04.006
[7]
Tejeswara Rao, P. (2013) Preparation and Characterization of Some Lead Meta Vanadate Semi-Conducting Glass Systems with GeO2, Bi2O3 and SnO2 Substituted for Lead Oxide. Ph.D. Thesis, Andhra University, Visakhapatnam.
[8]
Tejeswara Rao, 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. http://dx.doi.org/10.4236/njgc.2012.21006
