Enhancement of optical and mechanical properties of sodium silicate glasses using zirconia

Quaternary glasses with the composition 50SiO2-25TiO2-5La2O3-(20-x) Na2O-xY2O3 where : (0 ≤ ≥ 10) were synthesized using the melt-quench technique. XRD examined the nature of prepared glasses. UV-spectroscopic of investigated glass system studied at room temperature. Both optical bandgap and refractive index of the present glass have been increased. The polarizability and basicity were determined. Thermal parameter values increased as Y2O3 increased. Under controlling heat, the glass-ceramic were prepared and confirmed using XRD. Glass-ceramics are examined using SEM to evaluate a microstructure. Ultrasonic velocities and elastic-moduli of glass-ceramic samples are increased because of the increase in internal energy. The role of Y2O3 modifier in the glass system is clearly demonstrated. Y2O3 also works as an excellent nucleating agent that can induce crystallizations, supporting in the creation of the sub-phase of glass-ceramics.

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“…4. Therefore, Y2O3 is accounted as BO development [43]. The absorption coefficient ∝ was calculated by:…”

Section: Uv-visible Absorption Spectramentioning

confidence: 99%

Optical Properties of SiO2 – TiO2 – La2O3 – Na2O – Y2O3 Glasses and A Novel Process of Preparing the Parent Glass-Ceramics

El‐Rehim

Wahab

Halaka

et al. 2021

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“…It has been reported that spectral UV-absorption is increasingly absorbed. Therefore, La2O3 is accountable for the slight growth of BO [24][25][26][27][28][29][30][31][32][33][34][35][36]. Absorption coefficient of the glasses exemplifies Fig.…”

Section: Optical Characteristicsmentioning

confidence: 92%

Optical, thermal and radiation shielding properties of B2O3–NaF–PbO–BaO–La2O3 glasses

Shaaban

Alomairy

Al-Buriahi

2021

J Mater Sci: Mater Electron

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The techniques of melt-quenching were used to generate 53B2O3 -2NaF -27PbO -(20 − )BaO -La2O3 (0 ≤ ≥ 15) . XRD patterns have established the amorphous character of glass samples. There is clear evidence of the role of La2O3 modifier in the glass network. The thermal characteristics were identified to increase with an increase in La2O3 content. Increasing La2O3 increases the linear and non-linear optical bandgap energy and the Urbach energy. By adding La2O3 to the glass samples, the refractive index, molar polarizability, polarizability, and optical basicity are increased. Theoretically, the bulk modulus and the glass transition temperature increase because of the increase in bond strength. The number of bonds per unit increased with the increase in La2O3 content because of the modifier character of La2O3 in the glass samples. Multiple optical parameters ( ∞), ( o),(1) , ( 3) ) and ( 2 ) as a function of linear and non-linear were obtained. The extent of shielding in this article was examined with the increment in La2O3 at the expense of BaO. The results correspond with similar studies conducted previously.

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“…Bandgap energies for direct and indirect transitions, according to Tauc's theory [31][32][33][34][35][36] are evaluated by:h ¼ C ðh À E opt Þ s : Figs. 6 and 7 present the correlation between ( h ) 1/2 , (h ) 2 , and (h ).…”

Section: Optical Studiesmentioning

confidence: 99%

A Study of Thermal, and Optical Properties of 22SiO2- 23Bi2O3-37B2O3-13TiO2-(5-x) LiF- x BaO Glasses

Ali

Alrowaili

Al-Baradi

et al. 2021

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Using melt-quenching techniques, the glass system 22SiO 2 -23Bi 2 O 3 -37B 2 O 3 -13TiO 2 À ð5 À xÞ LiF-x BaO was prepared. The amorphous status of fabricated samples were established using X-ray diffraction patterns. Differential thermal analysis (glass transition temperature, crystallization temperature, and thermal stability) as well as optical properties (molar refractivity, bandgap, molar polarizability, reflection loss, metallization, electronegativity, and electron polarizability) of these glasses have been investigated. These structural changes influence the thermal properties, as we discovered. Indeed, as BaO levels rise, all the thermal parameters rise as well. With increasing BaO content, density, and refractive index rise. Bandgap energies for direct and indirect transitions reduced as the BaO content increased while Urbach energy increases. This interpretation attributable to the increment in the bond length of Ba-O. This study suggests that the fabricated glasses' optical and thermal characteristics have improved, making them suitable for a variety of applications.

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Enhancement of optical and mechanical properties of sodium silicate glasses using zirconia

Cited by 50 publications

References 41 publications

Optical Properties of SiO2 – TiO2 – La2O3 – Na2O – Y2O3 Glasses and A Novel Process of Preparing the Parent Glass-Ceramics

Optical Properties of SiO2 – TiO2 – La2O3 – Na2O – Y2O3 Glasses and A Novel Process of Preparing the Parent Glass-Ceramics

Optical, thermal and radiation shielding properties of B2O3–NaF–PbO–BaO–La2O3 glasses

A Study of Thermal, and Optical Properties of 22SiO2- 23Bi2O3-37B2O3-13TiO2-(5-x) LiF- x BaO Glasses

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