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Performance evaluation of doped titanium oxide for low-voltage applications

Cobalt compounds; Compressive strength; Current voltage characteristics; Doping (additives); High-k dielectric; Sintering; Tantalum oxides; Titanium dioxide; Titanium oxides; Tungsten compounds; Varistors; Average grain size; Dissipation factors; High dielectric constants; Low-voltage applications;...

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Main Authors: Begum S., Daud I.R., Ramasamy A.
Other Authors: 7101852571
Format: Article
Published: Blackwell Publishing Ltd 2023
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spelling my.uniten.dspace-222242023-05-29T13:59:42Z Performance evaluation of doped titanium oxide for low-voltage applications Begum S. Daud I.R. Ramasamy A. 7101852571 56304354100 16023154400 Cobalt compounds; Compressive strength; Current voltage characteristics; Doping (additives); High-k dielectric; Sintering; Tantalum oxides; Titanium dioxide; Titanium oxides; Tungsten compounds; Varistors; Average grain size; Dissipation factors; High dielectric constants; Low-voltage applications; Performance evaluations; Sintering temperatures; Theoretical density; Titanium dioxides (TiO2); Bismuth compounds Varistors are the electronic devices which are used in various industries to protect the electrical and electronic systems from sudden surges. In this research, the electrical properties of titanium dioxide (TiO2) doped with tantalum pentoxide (Ta2O5), tungsten trioxide (WO3), cobalt oxide (Co3O4), and bismuth oxide (Bi2O3) and fired at different temperatures were investigated for low-voltage applications. The adequate amount of dopants at suitable sintering temperature had beneficial effect in improving the properties of TiO2. The relative density was found to be more than 97% of theoretical density when samples sintered between 1300�C and 1400�C for all composition compared to undoped samples. On the other hand, the addition of dopants enhanced hardness and compressive strength of varistor disks. The average grain size was also increased with the dopants system, making it suitable for low-voltage application. Furthermore, the current-voltage characteristic of the TiO2 revealed a significantly high value of nonlinearity of 19.6. A high dielectric constant of 104 with minimum dissipation factor of 0.002852 at 1 kHz was also obtained, thereby making it suitable for low-voltage application. � 2015 The American Ceramic Society. Final 2023-05-29T05:59:42Z 2023-05-29T05:59:42Z 2015 Article 10.1111/ijac.12477 2-s2.0-84946532511 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946532511&doi=10.1111%2fijac.12477&partnerID=40&md5=da60b1947f7f20b77b88de8abff3cc9e https://irepository.uniten.edu.my/handle/123456789/22224 12 6 1189 1198 Blackwell Publishing Ltd Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Cobalt compounds; Compressive strength; Current voltage characteristics; Doping (additives); High-k dielectric; Sintering; Tantalum oxides; Titanium dioxide; Titanium oxides; Tungsten compounds; Varistors; Average grain size; Dissipation factors; High dielectric constants; Low-voltage applications; Performance evaluations; Sintering temperatures; Theoretical density; Titanium dioxides (TiO2); Bismuth compounds
author2 7101852571
author_facet 7101852571
Begum S.
Daud I.R.
Ramasamy A.
format Article
author Begum S.
Daud I.R.
Ramasamy A.
spellingShingle Begum S.
Daud I.R.
Ramasamy A.
Performance evaluation of doped titanium oxide for low-voltage applications
author_sort Begum S.
title Performance evaluation of doped titanium oxide for low-voltage applications
title_short Performance evaluation of doped titanium oxide for low-voltage applications
title_full Performance evaluation of doped titanium oxide for low-voltage applications
title_fullStr Performance evaluation of doped titanium oxide for low-voltage applications
title_full_unstemmed Performance evaluation of doped titanium oxide for low-voltage applications
title_sort performance evaluation of doped titanium oxide for low-voltage applications
publisher Blackwell Publishing Ltd
publishDate 2023
_version_ 1806425938727010304
score 13.211869

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