Electrical and Structural Properties of Nickel Oxide - Containing Phosphate Glasses - Egyptian Knowledge Bank

1206

Electrical and Structural Properties of Nickel Oxide - Containing Phosphate Glasses

Article

Last updated: 01 Jan 2025

Subjects

Abstract

PHOSPHATE glasses containing 0.05-7.5g NiO/100 glass were …. prepared using sodium di-hydrogen phosphate. The prepared glasse were investigated using IR, a.c. conductivity, dielectric constant (ε`) and the dielectric loss (ε``). IR spectra revealed that the Ni2+ ions are located near P=O. Addition of Na2O causes a breakdown of the ring type with the formation of more non-bridging oxygens and depolymerization of the network. The conductivity of Ni-containing glasses is more than that of Ni-free phosphate glass, and attain maximum value for glass containing 0.25 g NiO per 100g glass The relation between log σ and reciprocal of the temperature suggests that, the mechanism predominating in the high temperature region is ionic in nature, while it is electronic in origin in the low temperature region. Introducing NiO extends electronic conduction through hopping mechanism to the high temperature region particularly at high frequency. The dielectric constant′ and the dielectric loss ε `` increase with increasing temperature, while a decrease in′ with increasing frequency was observed.

DOI

10.21608/ejchem.2010.1206

Keywords

Phosphate glasses, Nickel oxide-containing glasses, electrical conductivity, Dielectric constant and Dielectric loss

Volume

Article Issue

Related Issue

288

Issue Date

2010-02-01

Receive Date

2009-12-13

Publish Date

2010-03-02

Page Start

Page End

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 53_Issue 1_Pages 85-99.pdf

PDF . 475.2kB

Link

https://ejchem.journals.ekb.eg/article_1206.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=1206

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Type Code

292

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle