, Volume 9, Issue 1–2, pp 67–70 | Cite as

High-temperature electrical transport in Al-doped calcium and strontium titanates

  • L. A. Dunyushkina
  • V. A. Gorbunov
  • A. A. Babkina
  • N. O. Esina


The electrical conductivity of perovskite-related oxides CaTi1−xAlxO3−δ and SrTi1−xAlxO3−δ (x=0−0.4) were investigated within the temperature range 900 to 1000 °C and the oxygen partial pressure range between 10−20 and 0.21 atm using a dc four-point technique. The materials investigated show predominantly p-type electronic conductivity at high, n-type electronic conductivity at low, and ionic conductivity at intermediate oxygen partial pressures. The values of ionic conductivity in CaTi1−xAlxO3−δ were found to be lower than those in CaTi1−xFexO3−δ. The effect of aluminium concentration on the high-temperature transport properties was examined.


Electrical Conductivity Titanate Strontium Transport Property Ionic Conductivity 
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Copyright information

© IfI - Institute for Ionics 2003

Authors and Affiliations

  • L. A. Dunyushkina
    • 1
  • V. A. Gorbunov
    • 2
  • A. A. Babkina
    • 1
  • N. O. Esina
    • 1
  1. 1.Institute of High Temperature ElectrochemistryUral Division of Russian Academy of ScienceEkaterinburgRussia
  2. 2.Ural State UniversityEkaterinburgRussia

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