TeO2–BaO–SrO–Nb2O5 glasses: a new glass system for waveguide devices applications

Murugan, Ganapathy Senthil; Ohishi, Yasutake

doi:10.1016/j.jnoncrysol.2004.04.006

Cited by 93 publications

(6 citation statements)

References 21 publications

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“…According to previous research Fayek and Fadel, material with higher value of Tc-Tgable to delay its nucleation process while material with small Tm-Tcvalue will able to retard the growth process [14]. Both untreated and heat-treated glass sample with Kgl values more than 0.1 proved that glass samples are stable and easy to form a glass [15].…”

Section: Resultsmentioning

confidence: 93%

Thermal Stability and Effect of Heat Treatment on Manganese Doped Silica Borotellurite Glass

Zaitizila¹,

Halimah²,

Muhammad³

et al. 2018

MSCE

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Glasses with chemical formula of {[(TeO 2) 0.7 (B 2 O 3) 0.3 ] 0.8 [SiO 2 ] 0.2 } 1−x {MnO 2 } x where x = 0.00 ≤ x ≤ 0.05 molar fraction were fabricated using melt quenching technique. The temperature used in the heat treatment process of the glass sample is 600˚C. Calorimetric measurement had been carried out to study the thermal properties of the fabricated glass. The crystallization kinetics of the glass system we reexamined under non-isothermal conditions via differential scanning calorimetric (DSC). The glass transition (Tg), onset glass transition (To), maximum crystallization temperature (Tc) and melting temperature (Tm) were determined. Results from DSC proved that the studied glasses have good thermal stability (Ts) in which indicates its high resistance to devitrification. Strong indicator for the glass forming ability of a glass material, Hurby parameter (Kgl) was also calculated in this research.

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Section: Resultsmentioning

confidence: 93%

Thermal Stability and Effect of Heat Treatment on Manganese Doped Silica Borotellurite Glass

Zaitizila¹,

Halimah²,

Muhammad³

et al. 2018

MSCE

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“…Lower K g value suggests higher tendency of crystallization and lower thermal stability. K g represents the temperature interval during nucleation [15]. From Table 1, it can be seen that that the concentration is increased from 5 mole% to 15 mole%.…”

Section: Resultsmentioning

confidence: 99%

DC Electrical Conductivity Studies of GeO2 Doped Lead Vanadate Glass System

Tejeswararao¹,

Sastry²

2017

NJGC

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Temperature dependent DC electrical conductivity studies of GeO2 substituted lead vanadate glass systems xGeO 2 (50−x)PbO:50V 2 O 5 (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 GeO 2 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.

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“…Lower K g suggests higher tendency of crystallization and lower thermal stability. K g represents the temperature interval during nucleation [6]. These values indicate that the 5SnO 2 45PbO:50V 2 O 5 glass samples have lowest thermal stability among four compositions, with a K g value of 0.099.…”

Section: Resultsmentioning

confidence: 99%

Thermal and FT-IR Properties of Semiconducting SnO2-PbO-V2O5 Glass System

Rao¹,

Vasundhara²

2015

NJGC

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Melt quenched "SnO 2 (50−x)PbO:50V 2 O 5 " 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 SnO 2 substituted PbO-V 2 O 5 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 SnO 2 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% SnO 2 substituted samples, additional peaks appear at 1023 and 1005 cm −1 indicating the effect of SnO 2 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.

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TeO2–BaO–SrO–Nb2O5 glasses: a new glass system for waveguide devices applications

Cited by 93 publications

References 21 publications

Thermal Stability and Effect of Heat Treatment on Manganese Doped Silica Borotellurite Glass

Thermal Stability and Effect of Heat Treatment on Manganese Doped Silica Borotellurite Glass

DC Electrical Conductivity Studies of GeO<sub>2</sub> Doped Lead Vanadate Glass System

Thermal and FT-IR Properties of Semiconducting SnO<SUB>2</SUB>-PbO-V<SUB>2</SUB>O<SUB>5</SUB> Glass System

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TeO2–BaO–SrO–Nb2O5 glasses: a new glass system for waveguide devices applications

Cited by 93 publications

References 21 publications

Thermal Stability and Effect of Heat Treatment on Manganese Doped Silica Borotellurite Glass

Thermal Stability and Effect of Heat Treatment on Manganese Doped Silica Borotellurite Glass

DC Electrical Conductivity Studies of GeO&lt;sub&gt;2&lt;/sub&gt; Doped Lead Vanadate Glass System

Thermal and FT-IR Properties of Semiconducting SnO&lt;SUB&gt;2&lt;/SUB&gt;-PbO-V&lt;SUB&gt;2&lt;/SUB&gt;O&lt;SUB&gt;5&lt;/SUB&gt; Glass System

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DC Electrical Conductivity Studies of GeO<sub>2</sub> Doped Lead Vanadate Glass System

Thermal and FT-IR Properties of Semiconducting SnO<SUB>2</SUB>-PbO-V<SUB>2</SUB>O<SUB>5</SUB> Glass System