Publication result detail
Hydrothermal ageing of tetragonal zirconia ceramics
ČÁSTKOVÁ, K., HADRABA, H., CIHLÁŘ, J.
Original Title
Hydrothermal ageing of tetragonal zirconia ceramics
English Title
Hydrothermal ageing of tetragonal zirconia ceramics
Type
Peer-reviewed article not indexed in WoS or Scopus
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.
English 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
Key words in English
Zirconia, Hydrothermal ageing, Phase transformation, Mechanical properties
Authors
ČÁSTKOVÁ, K., HADRABA, H., CIHLÁŘ, J.
RIV year
2011
Released
01.01.2004
ISBN
0862-5468
Periodical
CERAMICS-SILIKATY
Volume
48
Number
3
State
Czech Republic
Pages from
85
Pages count
7
BibTex
@article{BUT42194,
author="Klára {Částková} and Hynek {Hadraba} and Jaroslav {Cihlář}",
title="Hydrothermal ageing of tetragonal zirconia ceramics",
journal="CERAMICS-SILIKATY",
year="2004",
volume="48",
number="3",
pages="7",
issn="0862-5468"
}