Physical characterization of Titanium Dioxide based varistor materials doped with Cobalt Oxide

TiO2 varistor material acts as surge arrestors against transient voltages in electrical and electronic equipments. However, the enhancement of properties as a surge protector is very much dependent on the types of dopants being used. Not only that, the microstructure and enhanced mechanical characte...

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Main Authors: Kothandapani Z., Begum S., Nainar M.A.M., Gholizadeh S., Yee W.M.
Other Authors: 55786763900
Format: Conference paper
Published: 2023
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TiO
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spelling my.uniten.dspace-294942023-12-28T14:30:15Z Physical characterization of Titanium Dioxide based varistor materials doped with Cobalt Oxide Kothandapani Z. Begum S. Nainar M.A.M. Gholizadeh S. Yee W.M. 55786763900 7101852571 55489853600 57214402902 55786876400 average grain size Co<sub>3</sub>O<sub>4</sub> dopant shrinkage sintered strength TiO<sub>2</sub> varistor powder Cobalt Doping (additives) Grain size and shape Industrial electronics Manufacture Microstructure Oxides Shrinkage Sintering Strength of materials Surge protection Varistors Average grain size Electrical and electronic equipment Mechanical characteristics Physical characterization Sintered strength TiO Transient voltage Varistor materials Titanium dioxide TiO2 varistor material acts as surge arrestors against transient voltages in electrical and electronic equipments. However, the enhancement of properties as a surge protector is very much dependent on the types of dopants being used. Not only that, the microstructure and enhanced mechanical characteristics is anticipated to improve the surge characteristics. In this investigation, the effect of Cobalt Oxide (Co3O4) on Titanium Dioxide (TiO2) was investigated. The percent of dopant was varied at various levels and the prepared samples were characterized by evaluating the physical properties like green density, fired density, sintered strength, axial and radial shrinkage, average grain size and microstructure. A comparison between doped and undoped TiO2 was also made. The physical, mechanical and microstructure were improved for doped TiO2 samples and it was highest for the samples prepared from powder with 98.5 % TiO2.1.5% Co3O4 and sintered at 1350�C. � 2012 IEEE. Final 2023-12-28T06:30:15Z 2023-12-28T06:30:15Z 2012 Conference paper 10.1109/IEMT.2012.6521809 2-s2.0-84879869017 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879869017&doi=10.1109%2fIEMT.2012.6521809&partnerID=40&md5=51ad1ed0aaa2ffbd2445e58b44e63517 https://irepository.uniten.edu.my/handle/123456789/29494 6521809 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/
topic average grain size
Co<sub>3</sub>O<sub>4</sub> dopant
shrinkage
sintered strength
TiO<sub>2</sub> varistor powder
Cobalt
Doping (additives)
Grain size and shape
Industrial electronics
Manufacture
Microstructure
Oxides
Shrinkage
Sintering
Strength of materials
Surge protection
Varistors
Average grain size
Electrical and electronic equipment
Mechanical characteristics
Physical characterization
Sintered strength
TiO
Transient voltage
Varistor materials
Titanium dioxide
spellingShingle average grain size
Co<sub>3</sub>O<sub>4</sub> dopant
shrinkage
sintered strength
TiO<sub>2</sub> varistor powder
Cobalt
Doping (additives)
Grain size and shape
Industrial electronics
Manufacture
Microstructure
Oxides
Shrinkage
Sintering
Strength of materials
Surge protection
Varistors
Average grain size
Electrical and electronic equipment
Mechanical characteristics
Physical characterization
Sintered strength
TiO
Transient voltage
Varistor materials
Titanium dioxide
Kothandapani Z.
Begum S.
Nainar M.A.M.
Gholizadeh S.
Yee W.M.
Physical characterization of Titanium Dioxide based varistor materials doped with Cobalt Oxide
description TiO2 varistor material acts as surge arrestors against transient voltages in electrical and electronic equipments. However, the enhancement of properties as a surge protector is very much dependent on the types of dopants being used. Not only that, the microstructure and enhanced mechanical characteristics is anticipated to improve the surge characteristics. In this investigation, the effect of Cobalt Oxide (Co3O4) on Titanium Dioxide (TiO2) was investigated. The percent of dopant was varied at various levels and the prepared samples were characterized by evaluating the physical properties like green density, fired density, sintered strength, axial and radial shrinkage, average grain size and microstructure. A comparison between doped and undoped TiO2 was also made. The physical, mechanical and microstructure were improved for doped TiO2 samples and it was highest for the samples prepared from powder with 98.5 % TiO2.1.5% Co3O4 and sintered at 1350�C. � 2012 IEEE.
author2 55786763900
author_facet 55786763900
Kothandapani Z.
Begum S.
Nainar M.A.M.
Gholizadeh S.
Yee W.M.
format Conference paper
author Kothandapani Z.
Begum S.
Nainar M.A.M.
Gholizadeh S.
Yee W.M.
author_sort Kothandapani Z.
title Physical characterization of Titanium Dioxide based varistor materials doped with Cobalt Oxide
title_short Physical characterization of Titanium Dioxide based varistor materials doped with Cobalt Oxide
title_full Physical characterization of Titanium Dioxide based varistor materials doped with Cobalt Oxide
title_fullStr Physical characterization of Titanium Dioxide based varistor materials doped with Cobalt Oxide
title_full_unstemmed Physical characterization of Titanium Dioxide based varistor materials doped with Cobalt Oxide
title_sort physical characterization of titanium dioxide based varistor materials doped with cobalt oxide
publishDate 2023
_version_ 1806427636267745280
score 13.211869