Effects of temperature and dopant concentration on oxygen vacancy diffusion coefficient of yttria-stabilized zirconia

Oxygen vacancy diffusion coefficient in yttria-stabilized zirconia (YSZ) is investigated by statistical moment method. Vacancy-dopant association energy, vacancy migration energy are calculated as a function of temperature and dopant concentration. Oxygen vacancy diffusion coefficient increases with the increasing temperature but decreases with the dopant concentration. This degradation of the diffusion coefficient arises from the limitation for oxygen vacancy migration across cation barriers with the increasing dopant concentration. Calculated results are in good agreement with other theoretical and experimental results.

• Publication year

  2019

• Venue

  Journal of Physics: Conference Series

• Publication date

  2019-07-01

• Fields of study

  Materials Science, Physics

• Identifiers
  DOI 10.1088/1742-6596/1274/1/012005
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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