Influence of Ag2O on some physical properties of LiF–TiO2–P2O5 glass system

Nagarjuna, M.; Satyanarayana, T.; Gandhi, Y.; Veeraiah, N.

doi:10.1016/j.jallcom.2008.12.132

Cited by 22 publications

(6 citation statements)

References 44 publications

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“…The feature may be explained by the important presence of (P-O-B, BO − 3 and BO − 4 ) fragments. This observation supports an increase in the space charge polarization owing to the large degree of defects in the network [43,44].…”

Section: Absorption Spectrasupporting

confidence: 76%

Structural investigation of amorphous Na2O–P2O5–B2O3 correlated with its ionic conductivity

Sdiri¹,

Elhouichet²,

ElAkermi

et al. 2015

Journal of Non-Crystalline Solids

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Section: Absorption Spectrasupporting

confidence: 76%

Structural investigation of amorphous Na2O–P2O5–B2O3 correlated with its ionic conductivity

Sdiri¹,

Elhouichet²,

ElAkermi

et al. 2015

Journal of Non-Crystalline Solids

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“…The optical absorption spectra of the glass ceramics were recorded with a spectral resolution of 0.1 at room temperature in the spectral wavelength range covering 300-1500 nm using JASCO Model V-670 UV-vis-NIR spectrophotometer. The details of measurements of dielectrics were just similar to those reported in our earlier papers [21][22][23].…”

Section: Methodssupporting

confidence: 55%

Spectroscopic and dielectric properties of crystallized PbO–Sb2O3–As2O3:NiO glass system

Padmanabham

Gandhi

Satyanarayana

et al. 2009

Journal of Alloys and Compounds

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“…However, variation of Ag 2 O concentration did not affect the band positions of iron ion transitions. Ag 2 O is a well known modifier oxide and enter into the glass network either by rupturing or by the break up the P-O-P structure [42]. The appearance of the band at 990 cm -1 is characterized to the isolate ''P'' tetrahedral (PO 4 3-) (Q 0 structural units) [23,30,34], i.e.…”

Section: Ft-ir Spectroscopymentioning

confidence: 99%

“…This led to a decrease in the microhardness values of glasses G 2 -G 3 as compared with that of the base glass G 1 . When the amount of Ag 2 O is increased from 1.5 to 2 mol %, a remarkable polymerization process has been observed which led to the increase the cross-linking in the glasses structure and thus increase its strength [10,42].…”

Section: Microhardnessmentioning

confidence: 99%

Electrical and physicochemical properties of some Ag2O-containing lithia iron silica phosphate glasses

Ibrahim

Darwish

Gomaa

2011

J Mater Sci: Mater Electron

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The present paper reports the influence of Ag 2 O addition at the expense of Li 2 O on the local structure of xAg 2 OÁ(30 -x)Li 2 OÁ10Fe 2 O 3 Á10SiO 2 Á50P 2 O 5 glass matrix (with x = 0, 0.5, 1, 1.5 and 2 mol %). The phosphate structural units of the network former are assessed from Fourier transform infrared (FT-IR) spectroscopy. The addition of Ag 2 O to the glass network matrix B1 mol % leads to the occurrence of a depolymerization process of the phosphate structure and consequently, to the appearance of a distortion of the PO 4 tetrahedra. When the content of Ag 2 O is increased from 1.5 up to 2 mol %, a remarkable polymerization process has been observed. The density, molar volume, microhardness and chemical durability have been investigated in order to study the effect of Ag 2 O/Li 2 O replacements on the physicochemical properties the studied glasses. The AC electrical properties are affected to a great extent with composition. These results are related to the internal structure of the glass samples. The conductivity, dielectric constant and dielectric loss of the studied glasses were studied using the frequency response in the interval 100 Hz-100 kHz and the effect of compositional changes on the measured properties was investigated. Measurements showed that the electrical responses of glass samples were different and complex for interpretation. The increase of Ag 2 O addition at the expense of Li 2 O contents (from 0 to 1 mol %) led to increase the conductivity, dielectric constant and dielectric losses of samples. The addition of more Ag 2 O at the expense of Li 2 O (from 1.5 to 2 mol %), resulting into decreasing the conductivity, the dielectric constant and dielectric losses of the studied glasses. The experimental data of the glass samples were argued to the internal structure of the glasses and the nature and role-played by weakening or increasing the rigidity of the structure of the sample. It could be concluded, therefore, that the AC electrical properties of the samples were influenced by the distribution of its constituents, connectivity, and number of free charges.

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Influence of Ag2O on some physical properties of LiF–TiO2–P2O5 glass system

Cited by 22 publications

References 44 publications

Structural investigation of amorphous Na2O–P2O5–B2O3 correlated with its ionic conductivity

Structural investigation of amorphous Na2O–P2O5–B2O3 correlated with its ionic conductivity

Spectroscopic and dielectric properties of crystallized PbO–Sb2O3–As2O3:NiO glass system

Electrical and physicochemical properties of some Ag2O-containing lithia iron silica phosphate glasses

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