Performance evaluation of doped titanium oxide for low-voltage applications

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1189-1198
Number of pages10
JournalInternational Journal of Applied Ceramic Technology
Volume12
Issue number6
DOIs
Publication statusPublished - 01 Nov 2015

Fingerprint

Titanium oxides
titanium oxides
low voltage
varistors
Varistors
Doping (additives)
evaluation
Electric potential
bismuth oxides
Oxides
cobalt oxides
compressive strength
Tantalum
Current voltage characteristics
tantalum
Bismuth
electronics
Titanium dioxide
Compressive strength
Tungsten

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Marketing
  • Materials Chemistry

Cite this

@article{547f2fd3a8c24b9ea2c996b8214fc297,
title = "Performance evaluation of doped titanium oxide for low-voltage applications",
abstract = "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.",
author = "Shahida Begum and Daud, {Ida Rasyada} and Agileswari Ramasamy",
year = "2015",
month = "11",
day = "1",
doi = "10.1111/ijac.12477",
language = "English",
volume = "12",
pages = "1189--1198",
journal = "International Journal of Applied Ceramic Technology",
issn = "1546-542X",
publisher = "Wiley-Blackwell",
number = "6",

}

Performance evaluation of doped titanium oxide for low-voltage applications. / Begum, Shahida; Daud, Ida Rasyada; Ramasamy, Agileswari.

In: International Journal of Applied Ceramic Technology, Vol. 12, No. 6, 01.11.2015, p. 1189-1198.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Performance evaluation of doped titanium oxide for low-voltage applications

AU - Begum, Shahida

AU - Daud, Ida Rasyada

AU - Ramasamy, Agileswari

PY - 2015/11/1

Y1 - 2015/11/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84946532511&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84946532511&partnerID=8YFLogxK

U2 - 10.1111/ijac.12477

DO - 10.1111/ijac.12477

M3 - Article

AN - SCOPUS:84946532511

VL - 12

SP - 1189

EP - 1198

JO - International Journal of Applied Ceramic Technology

JF - International Journal of Applied Ceramic Technology

SN - 1546-542X

IS - 6

ER -