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

Content Provider	IEEE Xplore Digital Library
Author	Kothandapani, Z. Begum, S. Nainar, M.A.M. Gholizadeh, S. Wong Menn Yee
Copyright Year	2012
Description	Author affiliation: Centre for Advanced Materials, Universiti Tenaga Nasional (UNITEN), 43009 Kajang, Malaysia (Kothandapani, Z.; Begum, S.; Nainar, M.A.M.; Gholizadeh, S.; Wong Menn Yee)
Abstract	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.
Starting Page	1
Ending Page	4
File Size	1079106
Page Count	4
File Format	PDF
ISBN	9781467343848
ISSN	10898190
e-ISBN	9781467343862
DOI	10.1109/IEMT.2012.6521809
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-06
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	shrinkage TiO2 varistor powder Co3O4 dopant sintered strength average grain size
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Electrical and Electronic Engineering

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