Journal of Materials Science

, Volume 42, Issue 15, pp 6274–6278 | Cite as

Study of electrical conductivity changes and phase transitions in TiO2 doped ZrO2

  • Saba BegEmail author
  • Pooja Varshney
  • Sarita


The electrical conductivity in ZrO2 doped with various molar ratios of TiO2 has been measured at different temperatures. Phase transitions depending on the temperature for different molar compositions were investigated by doping of the samples. The conductivity is also found to increase with rise in temperature till 200 °C and thereafter decreases due to collapse of the fluorite framework. A second rise in conductivity in the doped samples around 462 °C is observed due to phase transition of ZrO2. X-ray powder diffraction recorded at high temperature show the effect of doping and the phase relationships of doped materials. DTA was also carried out for confirming doping effect and phase transition in samples.


TiO2 Oxygen Vacancy Baddeleyite Pure ZrO2 Oxygen Vacancy Formation 



The authors are grateful to Dr. Steven L. Suib (USA) for providing X-ray measurements. The authors are also thankful to UGC New Delhi (F.30–83/2004) for financial assistance.


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Department of ChemistryAligarh Muslim UniversityAligarhIndia

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