AC conductivity and dielectric properties in mixed ionic–electronic 20Na2O–20CaO–(60–x) B2O3–xV2O5 glasses

SN Mohamed, MK Halimah, RHY Subban… - Physica B: Condensed …, 2021 - Elsevier
Glasses with composition of 20Na 2 O–20CaO–(60–x) B 2 O 3–xV 2 O 5 (x= 0, 0.5, 1.0, 1.5,
2.0, 2.5 mol%) were prepared by melt–quenching technique to investigate the effects of …

Structure and emission properties of P2O5–Na2O–Pb3O4-MO,(MO= SrO, Y2O3, MoO3, Ag2O, CdO and SnO) glass and glass ceramics

EM Ahmed, NA El-Ghamaz, AL Waly - Ceramics International, 2022 - Elsevier
A group of glass and glass ceramic solids with compositions of 70% P 2 O 5–20% Na 2 O–
9% Pb 3 O 4–1% MO, where MO refers to SrO, Y 2 O 3, MoO 3, Ag 2 O, CdO and SnO were …

Effect of Pb/B ion replacement in B2O3. PbO. Fe2O3. Na2O glasses: optical, magnetic, and fluorescence properties

EM Ahmed, EA Gaml - Optical Materials, 2021 - Elsevier
Glasses of the formula (70-x)% B 2 O 3. x% PbO. 10% Fe 2 O 3. 20% Na 2 O are prepared
by the melt quenching technique. Complete amorphous structure is confirmed for the XRD …

Dielectric properties, polarizability and molar refractive index of some VSrFeZnO glasses

EM Ahmed, B Al-hasni - Journal of Microwave Power and …, 2020 - Taylor & Francis
Dielectric properties of a set of glasses having the composition (70-x)% V2O5-x% ZnO− 10%
SrO− 20% FeO is studied in terms of their permittivity and electric modulus. The dielectric …

On the electric and dielectric properties of some boro-lead sulphate glasses

AA Atta, HH Wahba, AL Waly, B Al-hasni… - Glass Physics and …, 2022 - Springer
Binary oxide glass system of the composition (100–x) B2O3∙ x PbSO4 [0≤ x≤ 40] is
prepared by the press-quenching technique. The X-ray measurement confirmed the …

Effect of lead oxide on the electrical transport properties of lithium–iron–borate glasses

MM Ibrahim, EM Ahmed, F Abdel-wahab… - Journal of Materials …, 2021 - Springer
The electrical conductivity and dielectric properties of the glass system (70-x) B 2 O 3–(x) Pb
3 O 4–10Fe 2 O 3–20Li 2 O [where 0≤ x≤ 35] have been investigated in the temperature …

Electronic signature of the Y3+ ions in some yttrium-doped soda borate glasses

EM Ahmed, A Mohamed, MI Youssif… - Journal of Materials …, 2023 - Springer
The current study focuses on the role of Y3+ ions in a glass system of the structure 70%
B2O3–(30− x)% Na2O–x% Y2O3 (with 0≤ x≤ 2.5 mol%). As well as investigating their …

Mössbauer spectroscopy and other structural properties of some V2O5.SrO.FeO glasses

AA Atta, EM Ahmed, B Al Hasni… - Materials Research …, 2023 - Taylor & Francis
ABSTRACT A series of (80-x)% V2O5·(x)% SrO· 20% FeO glasses with 0≤ x≤ 40 mole are
prepared. The XRD proved the amorphous network of the glasses. Some isolated V= O …

Electrical conductivity and breakdown properties of some erbium oxide doped phosphovanadate glasses

EM Ahmed, MI Youssif, AA Elzelaky - Journal of Materials Science …, 2020 - Springer
Electrical conductivity and breakdown properties have been investigated for 70% V 2 O
5·(30–x)% P 2 O 5· x% Er 2 O 3 glasses with (0≤ x≤ 0.9). The conductivity measurements …

Calorimetric Analysis and Dielectric Properties of Se50Te45Ge5 Chalcogenide Alloy

EM Ahmed, AA Atta, HH Wahba - Journal of Testing …, 2022 - asmedigitalcollection.asme.org
In this article, the amorphous structure of chalcogenide alloy Se50Te45Ge5 is confirmed by
x-ray diffraction analysis with under-constrained nature. The differential scanning …