Publication detail

Hydrothermal ageing of tetragonal zirconia ceramics

ČÁSTKOVÁ, K., HADRABA, H., CIHLÁŘ, J.

Original Title

Type

journal article - other

Language

English

Original Abstract

The effect of hydrothermal treatment on the phase stability, microstructure and mechanical properties of tetragonal zirconia ceramics stabilized with 3 mol% yttria was studied. At temperatures of 140-260C the tetragonal phase transformed into monoclinic zirconia. The degree of transformation increased with increasing temperature and time of ageing. Changes in the microstructure and mechanical properties were observed for the samples used at temperatures of 180C and higher. The thickness of transformed layer increased with increasing temperature and at 260C it reached a thickness of 170 mikrom after 10 hours. The changes in mechanical properties (hardness and fracture toughness) corresponded to the structural changes in the material caused by hydrothermal ageing. Temperatures of 180C and higher were critical for the mechanical and structural properties of the material.

Keywords

Zirconia, Hydrothermal ageing, Phase transformation, Mechanical properties

Authors

ČÁSTKOVÁ, K., HADRABA, H., CIHLÁŘ, J.

Released

1. 1. 2004

ISBN

0862-5468

Periodical

Ceramics-Silikáty

Year of study

Number

State

Czech Republic

Pages from

Pages to

Pages count

BibTex

@article{BUT42194,
  author="Klára {Částková} and Hynek {Hadraba} and Jaroslav {Cihlář}",
  title="Hydrothermal ageing of tetragonal zirconia ceramics",
  journal="Ceramics-Silikáty",
  year="2004",
  volume="48",
  number="3",
  pages="7",
  issn="0862-5468"
}