Structure–property correlations in lead borate and borosilicate glasses doped with aluminum oxide

Saini, Amanpreet; Khanna, Atul; Michaelis, Vladimir K.; Kroeker, Scott; González, Fernando; Hernández, D.

doi:10.1016/j.jnoncrysol.2009.08.006

Cited by 56 publications

(39 citation statements)

References 58 publications

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“…2). Initially, there is an increase in density as expected, but a decrease in density is observed for 7BBS which can be due to the decrease in the number of four-coordinated boron (N 4 ) and/or due to the conversion of part of the denser AlO 6 to low density tetra or penta-coordinated Al-O units [11]. However, there is an increase in density in 11BBS indicating an increase in the number hexa-coordinated Al 3?…”

Section: Densitysupporting

confidence: 51%

“…Various authors have studied the influence of aluminum oxide in borate and borosilicate glasses and have made structure-property correlation of these glasses [8][9][10][11][12]. In the present study, the effect of addition of different wt% of crystalline Al 2 O 3 (alumina) powder on the thermal, dielectric and spectroscopic properties of 30BaO-60B 2 O 3 -10SiO 2 glass have been examined.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and characterization of barium borosilicate glass–Al2O3 composites

Santha

Nideep

Rejisha

2011

J Mater Sci: Mater Electron

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Barium borosilicate glass with composition 30BaO-60B 2 O 3 -10SiO 2 glass was prepared by meltquenching technique. Different weight % of crystalline Al 2 O 3 was mixed with the glass powder and sintered at optimum temperature. The changes in the structure and thermal properties of the glass with alumina content were investigated by X-ray powder diffraction, FT-IR spectroscopy and differential thermal analysis. The variations in the coefficient of thermal expansion and dielectric properties with composition were also studied and correlated with the structural changes.

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Section: Densitysupporting

confidence: 51%

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of barium borosilicate glass–Al2O3 composites

Santha

Nideep

Rejisha

2011

J Mater Sci: Mater Electron

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“…Molar volumes for all bismuth borate glasses are given in Table 1. We observe that glass molar volume increases with rise in Bi 2 O 3 content, a behavior that is opposite to PbO-B 2 O 3 glasses which exhibit a decrease in molar volume with rise in PbO concentration in their entire glass formation range [45]. This is due to different densities of PbO (orthorhombic, d = 9.53 g cm À3 ) and Bi 2 O 3 (monoclinic, d = 8.93 g cm À3 ).…”

Section: Densitymentioning

confidence: 57%

Structural investigation of bismuth borate glasses and crystalline phases

Bajaj

Khanna

Chen

et al. 2009

Journal of Non-Crystalline Solids

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109

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“…It is obvious that E r increased by increasing Pb content. Increasing Pb-content has been increased the width of the tails of localized states in the band gap [23].…”

Section: Uv-vis Spectramentioning

confidence: 99%

Optical and dielectric properties of poly(vinylacetate)/lead oxide composites

Abdelaziz

2011

J Mater Sci: Mater Electron

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Composite films of poly(vinylacetate)/red lead oxide have been prepared by mixing the fine lead oxide particles into polyvinylacetate solution under ultrasonication followed by film casting technique. Structural, optical and dielectric properties have been performed to characterize these composites films and compared their properties to pure PVAc film. The changes in the structural of the prepared films were investigated by X-ray diffraction (XRD) and FT-IR spectra. It has been observed that the crystallinity of the composites films depends on the Pbcontent. Optical spectra of the composites films showed direct allowed band gaps lying in the range of 5.0-4.6 eV which is lower than that of PVAc. Frequency and doping level dependence of dielectric constant (e 0 ), ac conductivity (r ac ) and tangent loss (tand) have been measured. The values of e 0 were decreased with increasing in frequency, which indicates that the major contribution to the polarization comes from orientation polarization. The ac conductivity is more for doped PVAc than that of undoped PVAc. The experimental results show that e 0 and r ac increase with adding of lead oxide in PVAc. The controllable of optical and dielectric properties of the composite film will draw much attention for potential applications.

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Structure–property correlations in lead borate and borosilicate glasses doped with aluminum oxide

Cited by 56 publications

References 58 publications

Synthesis and characterization of barium borosilicate glass–Al2O3 composites

Synthesis and characterization of barium borosilicate glass–Al2O3 composites

Structural investigation of bismuth borate glasses and crystalline phases

Optical and dielectric properties of poly(vinylacetate)/lead oxide composites

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