On Y2O3·Li2O·Al2O3·B2O3 glasses: synthesis, structure, physical, optical characteristics and gamma-ray shielding behavior

Misbah, M. Hamed; Abdelghany, A.M.; El‐Agawany, F.I.; Rammah, Y.S.; El-Mallawany, R.

doi:10.1007/s10854-021-06172-2

Cited by 17 publications

(3 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where Y 3+ is recorded to convert the BO 3 to BO 4 groups. [11,26,27] In contrast, the decrease in N 4 values that was recorded for the 2 and 2.5 mol% samples may be due to the formation of isolated YBO 3 clusters. The presence and increase in the isolated YBO 3 clusters were confirmed by the XRD results to start from the 1.5 mol% Y 2 O 3 sample.…”

Section: Ftir Analysismentioning

confidence: 95%

Effect of Y³⁺ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass

et al. 2022

View full text Add to dashboard Cite

Glass of the composition 70%B2O3‐(30‐x)%Na2O‐x%Y2O3 with x = 0, 0.5, 1, 1.5, 2, and 2.5 mol% was manufactured using the melt quenching method. X‐ray diffraction tests indicated the amorphous structure of the glass, with the presence of some YBO3 clusters in the high yttrium content samples. Fourier transform infrared spectra analysis proved the presence of different borate groups and linkages, in addition to nonsystematic changes in the ratio BO3/BO4 in the glass. The forming ability of the glass was found to be approximately stable for the low Y3+ content samples and increased for the heavily doped samples. The density of the samples was found to increase as the Y3+ concentration was increased, whereas the molar volume decreased. The bond strength of the examined glass suggested that a covalent nature was dominant between bonds. All the Y3+‐doped glass was found to emit greenish‐cyan light when excited at λex=3650.25emnm. Photoluminescence intensity was shown to be enhanced by the generated YBO3 groups. The obtained correlated colour temperature values with 82.5% purity recommend the suitability of the glass for applications in outdoor illumination.

show abstract

Section: Ftir Analysismentioning

confidence: 95%

Effect of Y³⁺ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass

et al. 2022

View full text Add to dashboard Cite

show abstract

“…However, the µm value of the P50C30N15Fe5 sample with a 5 mole% Fe2O3 contribution was found to be the highest over the whole investigated energy range. The half value layer (T0.5) is described in centimeters (cm) of material thickness, which may halve the quantitative intensity of the incident photon beam [29][30][31]. This parameter is particularly crucial for materials whose absorption characteristics are being investigated [32][33][34][35].…”

Section: Radiation Attenuation Properties Of Bioactive Glassesmentioning

confidence: 99%

Utilizing Fe2O3 in phosphate-based glasses to enhance biocompatibility and gamma-ray absorption characteristics: A step towards understanding of Na2O/Fe2O3 translocation in P2O5–CaO–Na2O glass system

Neel

Sheela

Oyhanart

et al. 2023

Ceramics International

View full text Add to dashboard Cite

“…When a modifier oxide is added to this network it will lead to creating three-fold coordinated boron units and produces non-bridged oxygen units (NBO's). This feature yields substantial changes in the physical properties like magnetic, optical, and electrical [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. As a conditional glass former, tellurium oxide requires a modifier (alkali, alkaline earth and transition metal ions) or a glass former to produce glasses.…”

Section: Introductionmentioning

confidence: 99%

Effect of Alkaline earth oxides on the ionic conductivity of Boro-Tellurite glasses for solid state ion batteries

BOORA¹,

Chary²,

Shareefuddin³

2022

Phys. Scr.

View full text Add to dashboard Cite

The complex impedance spectroscopy studies (electrical impedance, a.c. conductivity, dielectric constant, loss tangent) of the boro-tellurite glasses were measured as a function of the alkaline earth oxide content at broad range of frequencies and temperatures. Three series of boro-tellurite glasses containing BaO/SrO viz. BaO-TeO2-TiO2-B2O3 (BTTB), BaO-TeO2-B2O3 (BTB) and SrO-TeO2-TiO2-B2O3 (STTB) were prepared by the melt quenching method. The prepared glasses were characterized by XRD, DSC, density, FTIR and complex impedance spectroscopy experimental techniques. The XRD spectra exhibited no characteristic sharp peaks indicating the amorphous nature of the prepared glass samples. The glass transition temperature (Tg) values were evaluated from the DSC thermograms. The density values were found to increase with BaO content while they decreased with SrO content. This variation was attributed to the different density values of BaO and SrO. FTIR spectra revelated the presence of different structural units like BO3 and BO4. Impedance studies demonstrated that the replacement of TeO2 by the BaO content enhanced the ionic conductivity. The impedance plots of BTTB, BTB and STTB glasses exhibited nearlys semicircles. The bulk resistance (Rb) was calculated from the impedance plots. It was observed that the Rb values decrease with increasing BaO in BTTB and BTB glasses, while it increased with SrO in STTB glasses which may be attributed to the variation of mobile charge carriers. The Rb values vary as BTB > BTTB > STTB. The capacitance calculated from the impedance plots increased with increasing BaO mol% and decreasing SrO mol%. The capacitance also increased with increasing temperature. The power law exponent (k) values decrease with increasing temperature. Therefore, the ac conduction mechanism may follow correlated barrier hopping model. The real part of dielectric constant (ε^') has high values at low frequencies, which decreased rapidly with surge of frequency. At high frequencies the contribution of charge accumulation is minimum resulting in constantε^'.

show abstract

On Y2O3·Li2O·Al2O3·B2O3 glasses: synthesis, structure, physical, optical characteristics and gamma-ray shielding behavior

Cited by 17 publications

References 61 publications

Effect of Y³⁺ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass

Effect of Y³⁺ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass

Utilizing Fe2O3 in phosphate-based glasses to enhance biocompatibility and gamma-ray absorption characteristics: A step towards understanding of Na2O/Fe2O3 translocation in P2O5–CaO–Na2O glass system

Effect of Alkaline earth oxides on the ionic conductivity of Boro-Tellurite glasses for solid state ion batteries

Contact Info

Product

Resources

About

On Y2O3·Li2O·Al2O3·B2O3 glasses: synthesis, structure, physical, optical characteristics and gamma-ray shielding behavior

Cited by 17 publications

References 61 publications

Effect of Y3+ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass

Effect of Y3+ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass

Utilizing Fe2O3 in phosphate-based glasses to enhance biocompatibility and gamma-ray absorption characteristics: A step towards understanding of Na2O/Fe2O3 translocation in P2O5–CaO–Na2O glass system

Effect of Alkaline earth oxides on the ionic conductivity of Boro-Tellurite glasses for solid state ion batteries

Contact Info

Product

Resources

About

Effect of Y³⁺ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass

Effect of Y³⁺ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass