Investigation of the Properties of Zirconia Based Ceramics

Authors

  • Konstantyn ISAYEV, Aleksej ŠEVČENKO, Kristina BRINKIENĖ∗, Jūratė ČĖSNIENĖ, Rita KRIŪKIENĖ Frantsevich Institute for Problems of Materials Science of NAS of Ukraine

Keywords:

YSZ ceramics, thermal treatment, microstructural investigations, XRD, thermal conductivity.

Abstract

Zirconia based ceramics properties were investigated utilizing it as a reference material for thermal conductivity measurements. Zirconia based ceramics (YSZ) containing 7 wt % Y2O3 were fabricated using fine powders prepared by the hydrolysis technique. The mechanical properties of these ceramics – crushing strength and elongation were evaluated. These properties are discussed on the basis of their stability at the experimental conditions at 1000 oC temperature. Microstructure of polished cross-section of the samples was investigated by optical and scanning electron microscopy (SEM). Phase analysis was identified by X-ray diffractometry (XRD). Thermal conductivity of the ceramics was measured at various temperatures using hot-wire (cross-array and parallel) and inverse methods.

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Published

2005-09-13

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Section

Articles