Transport properties of ZnO substituted lead vanadate glass system at eutectic composition

Ramesh, K. V.; Sastry, D.L.

doi:10.1016/j.mseb.2005.08.111

Cited by 20 publications

(12 citation statements)

References 32 publications

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“…In general, phosphate glasses are sensitive to moisture because their P-O linkages, which are not bonded to cations, can react with moisture to form phosphoric acid, thereby spoiling/reducing the durability of the material 24) . However, the addition of B 2 O 3 , has been reported to enhance the chemical durability 25,26) .…”

Section: Chemical Durabilitymentioning

confidence: 99%

Effect of Substituting B2O3 for P2O5 in Conductive Vanadate Glass

Choi¹,

Kim²,

Jung³

et al. 2015

J. Korean Ceram. Soc

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In this study, we verified the relationship among the electrical conductivity, chemical durability, and structure of conductive vanadate glass in which BO 3 and BO 4 and V 4+ and V 5+ coexist simultaneously. We prepared samples of vanadium borophosphate glass with various compositions, given by, and analyzed the electrical conductivity, chemical durability, FT-IR spectroscopy, thermal properties, density, and molar volume. Substituting B 2 O 3 for P 2 O 5 was found to improve the electrical conductivity, chemical durability, and thermal properties. From these results, we can draw the following conclusions. First, the electrons shift from the electron rich V 4+ to the electron deficient BO 3 as the B 2 O 3 content increases. Second, the improvement in chemical durability and thermal properties is attributed to an increase in cross-linked structures by changing from a BO 3 structure to a BO 4 structure.

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Section: Chemical Durabilitymentioning

confidence: 99%

Effect of Substituting B2O3 for P2O5 in Conductive Vanadate Glass

Choi¹,

Kim²,

Jung³

et al. 2015

J. Korean Ceram. Soc

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“…In literature there are studies in which La 2 O 3 and Fe 2 O 3 are added to PbO-V 2 O 5 chosen at 1:1, 2:1 and 1:2 molar ratios [31]. These studies using [32] and dc electrical conductivity measurements of ZnO substituted lead vanadate glass systems [33].…”

Section: Introductionmentioning

confidence: 99%

IR and ESR studies of CuO substituted for PbO in eutectic lead vanadate glass system

Ramesh

Sastry

2006

Journal of Non-Crystalline Solids

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“…Recently Ramesh and Sastry carried out the work in the field of semi conducting glasses to understand the effect of different oxide groups in the place of PbO in PbO-V 2 O 5 glass system chosen at the eutectic composition i.e. 1:1 molar ratio with the substitution of ZnO, CuO and TiO 2 in the place of PbO of PbO-V 2 O 5 eutectic glass composition which can be represented as follows, by the general formula XMO:(50-x)PbO:50V 2 O 5 , where MO is the substituted metal oxide [3][4][5][6]. In all compositions x varied as 0, 5, 10 and 15 mole%.…”

Section: Introductionmentioning

confidence: 99%

Electrical and Spectroscopic Studies of the CdO Substituted Lead Vanadate Glass System vs Crystalline Form

Tejeswara¹,

V.²,

L.³

2012

NJGC

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Results of the direct current (DC) Electrical Conductivity, thermoelectric power and Electron Spin Resonance (ESR) of CdO substituted PbO-V 2 O 5 glass system are reported. Conduction in these glasses is found to be electronic and the hoping of polaron seems to be the dominant process in the transport mechanism. There is a remarkable decrease in the activation energy for conduction in the annealed and devitrified samples when compared to their amorphous counter parts. It is observed that there is remarkable improvement in the conductivity of the crystalline samples when compared to their amorphous counter parts. The thermoelectric power measurements indicates that the amorphous samples are n-type at room temperature where as the crystalline samples are p-type at room temperature. In crystalline samples the hyperfine structure is nearly smeared out and a relatively broad line with an isotropic g value characterizes the spectra.

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Transport properties of ZnO substituted lead vanadate glass system at eutectic composition

Cited by 20 publications

References 32 publications

Effect of Substituting B2O3 for P2O5 in Conductive Vanadate Glass

Effect of Substituting B2O3 for P2O5 in Conductive Vanadate Glass

IR and ESR studies of CuO substituted for PbO in eutectic lead vanadate glass system

Electrical and Spectroscopic Studies of the CdO Substituted Lead Vanadate Glass System vs Crystalline Form

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