Ion transport studies on Li2O-PbO-B2O3-P2O5glass system

Muralidhara, R.S.; Anavekar, R. V.

doi:10.1088/1757-899x/2/1/012056

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…Phosphate glass-based (xPbO-yB 2 O 3 -zP 2 O 5 ) system was prepared by the conventional melt quenching method as described in the previous work [31]. The boric acid H 3 BO 3 , ammonium monohydrogen phosphates (NH 4 ) 2 HPO 4 , and lead monoxide PbO are mixed in stoichiometric proportions using a glass mortar.…”

Section: Preparation Of Phosphate Glassesmentioning

confidence: 99%

Synthesis, structural and the corrosion inhibition of phosphate-based xPbO–yB2O3–zP2O5 glass for C35 steel in acidic media

Barzali

Ali

Ahsaine

et al. 2022

Nanotechnol. Environ. Eng.

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In this work, we report the thermal, structural and anticorrosive properties of glasses from the xP 2 O 5 -yPbO-zB 2 O 3 system. The prepared materials were characterized using different techniques such as X-ray diffraction, Fourier transform infrared spectroscopy and (FTIR), scanning electron microscopy and differential scanning calorimetry (DSC). DSC analysis showed that the thermal stability increases with the increase of PbO and P 2 O 5 oxides contents. These results were confirmed by density and molar volume measurements. Furthermore, the structural evolution of the studied glasses was followed by FTIR vibrational spectroscopy, and it showed a cross-linking of the glass network upon incorporation of PbO. In addition, the study of the corrosion inhibition of C35 steel by glasses of the xP 2 O 5 -yPbO-zB 2 O 3 system showed that when concentrations of 70 and 700 ppm are used, the corrosion potential rises to around − 437 mV versus SCE, indicating that the glasses of the xP 2 O 5 -yPbO-zB 2 O 3 system change the stability of the metal/solution system to a different stable state. From 70 to 700 ppm, the inhibitor starts to have an effect on the anode current, but it is weaker than the cathode current. The results show that borophosphate glasses are effective corrosion inhibitors for C35 steel in a 1 M HCl environment. At 30 °C, the inhibitory efficiency is around 68% at a concentration of 70 ppm and increases with increasing inhibitor concentrations, reaching 86% at a concentration of 700 ppm.

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Section: Preparation Of Phosphate Glassesmentioning

confidence: 99%

Synthesis, structural and the corrosion inhibition of phosphate-based xPbO–yB2O3–zP2O5 glass for C35 steel in acidic media

Barzali

Ali

Ahsaine

et al. 2022

Nanotechnol. Environ. Eng.

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DIELECTRIC STUDIES IN Li2O AND CoO DOPED BOROPHOSPHATE GLASSES

Talari

Ashwajeet

Ramanna

et al. 2015

JAP

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Borophosphate glasses in the compositions, (B2O3)0.2 . (P2O5)0.3 . (Li2O) 0.5-X . (CoO) X, wherex = 0.05, 0.1, 0.15, 0.25, 0.30, 0.35, 0.40 and 0.45 were prepared at 1400K by following melt quenching method. Their amorphous nature was confirmed by XRD studies and was investigated for dielectric properties in the frequency range from 100Hz to 1MHz and temperature range from 300K to 573K. The conductivity was derived from the dielectric spectrum. The frequency exponent, s, dc and ac components of the conductivity were determined. The temperature dependence of conductivity at different frequencies was analyzed using Mottâ€™s small polaron hopping model, and the high temperature activation energy has been estimated and discussed. The variation of conductivity and activation energy with composition revealed a changeover of conduction mechanism from predominantly ionic to electronic regime for mole fractions of CoO between 0.3 and 0.35. This is a new result. Huntâ€™s model has been employed to analyze frequency dependence of conductivity. Relaxation features of the dielectric properties have been extracted from the analysis of electric moduli with frequency. Activation energy for relaxation mechanism has been determined. Frequency exponent was found to be temperature dependent. Quantum mechanical theory and correlated barrier hopping models were found to be inadequate to explain frequency exponent behavior with temperature.For the first time that borophosphate glasses doped with Li2O and CoO were studied for dielectric properties and ac conductivity as a function of temperature and frequency and the data has been analysed thoroughly.Â

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Ion transport studies on Li₂O-PbO-B₂O₃-P₂O₅glass system

Cited by 2 publications

References 7 publications

Synthesis, structural and the corrosion inhibition of phosphate-based xPbO–yB2O3–zP2O5 glass for C35 steel in acidic media

Synthesis, structural and the corrosion inhibition of phosphate-based xPbO–yB2O3–zP2O5 glass for C35 steel in acidic media

DIELECTRIC STUDIES IN Li2O AND CoO DOPED BOROPHOSPHATE GLASSES

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