Crossref journal-article
Wiley
Journal of the American Ceramic Society (311)
Abstract

The rate of the resistance degradation of doped SrTiO3 ceramics is investigated as a function of various external and material parameters. The effects of the mutually interrelated parameters dc voltage, dc electric field, and thickness of the dielectric are described by power laws. Electron microscopic potential contrast studies show a Maxwell‐Wagner polarization leading to a concentration of the electric field at the grain boundaries during the degradation. Based on this finding, the voltage step per grain boundary, ΔΘgb, is introduced as a rate‐determining parameter which allows an explanation of the influence of the grain size on the degradation rate as well as the difference in the power laws for ceramic and single‐crystal samples.

Bibliography

Waser, R., Baiatu, T., & Härdtl, K. (1990). dc Electrical Degradation of Perovskite‐Type Titanates: I, Ceramics. Journal of the American Ceramic Society, 73(6), 1645–1653. Portico.

Authors 3
  1. Rainer Waser (first)
  2. Tudor Baiatu (additional)
  3. Karl‐Heinz Härdtl (additional)
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Dates
Type When
Created 19 years, 10 months ago (Oct. 12, 2005, 9:06 a.m.)
Deposited 1 year, 9 months ago (Nov. 22, 2023, 5:28 p.m.)
Indexed 19 minutes ago (Aug. 27, 2025, 4:35 a.m.)
Issued 35 years, 2 months ago (June 1, 1990)
Published 35 years, 2 months ago (June 1, 1990)
Published Online 19 years, 10 months ago (Oct. 12, 2005)
Published Print 35 years, 2 months ago (June 1, 1990)
Funders 0

None

@article{Waser_1990, title={dc Electrical Degradation of Perovskite‐Type Titanates: I, Ceramics}, volume={73}, ISSN={1551-2916}, url={http://dx.doi.org/10.1111/j.1151-2916.1990.tb09809.x}, DOI={10.1111/j.1151-2916.1990.tb09809.x}, number={6}, journal={Journal of the American Ceramic Society}, publisher={Wiley}, author={Waser, Rainer and Baiatu, Tudor and Härdtl, Karl‐Heinz}, year={1990}, month=jun, pages={1645–1653} }