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8172

STUDY THE THERMAL AND ELECTRICAL PROPERTIES OF SOME MAGNESIUM-BORO-PHOSPHATE GLASSES CONTAINING VANADIUM OXIDE.

Article

Last updated: 03 Jan 2025

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Subjects

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Tags

Astronomy
Mathematics
Physics

Abstract

Glasses having the molecular composition 20 MgO - 30 B2O3 - (50-x) P2O5 – x V2O5 –- (x = 0, 5, 10, 15 and 20 mol %) have been prepared by the conventional melt quenching method. The thermal and electrical transport properties of the prepared glasses were thoroughly investigated by using differential thermal analysis technique and LCR meter-bridge with four fixed frequencies.
All the obtained thermal parameters are found to depend on the composition and heating rate. Both the activation energy of glass transition and activation energy of crystallization as well as the thermal stability are found to increase with the gradual increase of vanadium oxide content.
It was found that, all samples exhibit semi-conduction properties and the conduction mechanism was found to be the small polaron hoping at relatively low temperatures while at relatively higher temperatures, the correlated barrier hoping model was found to be dominant. Also, as vanadium oxide was gradually increased, the conductivity, dielectric constant and dielectric loss factor exhibit gradual increase.

DOI

10.21608/absb.2017.8172

Keywords

Thermal properties of glass, Thermal stability, glass, Glass transition temperature, electrical conductivity, Dielectric properties

Authors

First Name

A.

Last Name

Bendary

MiddleName

A.

Affiliation

Phys. Dept., Faculty of Science, Al-Azhar Univ., Nasr City, Cairo, Egypt.

Email

dr_ayman_bendary@azhar.edu.eg

City

-

Orcid

-

Volume

28

Article Issue

Issue 2-D

Related Issue

1594

Issue Date

2017-06-01

Receive Date

2017-01-15

Publish Date

2017-06-01

Page Start

1

Page End

10

Print ISSN

1110-2535

Online ISSN

2636-3305

Article File

ABSB_Volume 28_Issue Issue 2-D_Pages 1-10.pdf

PDF . 1.5MB

Link

https://absb.journals.ekb.eg/article_8172.html

Detail API

https://absb.journals.ekb.eg/service?article_code=8172

Order

1

Type

Original Article

Type Code

520

Publication Type

Journal

Publication Title

Al-Azhar Bulletin of Science

Publication Link

https://absb.journals.ekb.eg/

MainTitle

STUDY THE THERMAL AND ELECTRICAL PROPERTIES OF SOME MAGNESIUM-BORO-PHOSPHATE GLASSES CONTAINING VANADIUM OXIDE.

Details

Type

Article

Created At

22 Jan 2023