Investigation of the Properties of Alumina-Zirconia Ceramics

Abstract:

The article focuses on the investigation of the properties of alumina-zirconia ceramics possessing high mechanical characteristics and good conductivity at high temperatures. Measurement results of the dielectric dissipation factor, dielectric constant, electric conductivity when using direct and alternating current for the ceramics samples of 80%(ZrO₂-3%Y₂O₃)-20% Al₂O₃ composition are presented in the paper. Measurements were conducted simultaneously in the electrostatic field in vacuum while heating the samples to the temperatures ranging from 300 to 1700K. Investigations showed that alumina-zirconia ceramics at high temperatures obtains ferroelectric properties not typical of these structures.

• Periodical: Advanced Materials Research (Volume 1040)
• Pages: 245-249
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1040.245
• Online since: September 2014
• Authors: Aleksander S. Ivashutenko*, Alexandr V. Kabyshev, Nikita V. Martyushev, Igor G. Vidayev
• Keywords: Alumina-Zirconia Ceramics, Corundum, Dielectric Property, Ferroelectric Properties, Zirconium Oxide

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