Publication detail

Dilatometric study of anisotropic sintering of alumina/zirconialaminates with controlled fracture behaviour

MACA, K. POUCHLÝ, V. DRDLÍK, D. HADRABA, H. CHLUP, Z.

Original Title

Dilatometric study of anisotropic sintering of alumina/zirconialaminates with controlled fracture behaviour

English Title

Dilatometric study of anisotropic sintering of alumina/zirconialaminates with controlled fracture behaviour

Type

journal article in Web of Science

Language

en

Original Abstract

tAl2O3and ZrO2monoliths as well as layered Al2O3/ZrO2composites with a varying layer thickness ratiowere prepared by electrophoretic deposition. The sintering shrinkage of these materials in the transversal(perpendicular to the layers, i.e. in the direction of deposition) as well as in the longitudinal (parallelwith layers interfaces) direction were monitored using high-temperature dilatometry. The sintering oflayered composites exhibited anisotropic behaviour. The detailed study revealed that sintering shrinkagein the longitudinal direction was governed by alumina (material with a higher sintering temperature),whilst in the transversal direction it was accelerated by the directional sintering of zirconia layers. Forinterpretation of such anisotropic sintering kinetics, the Master Shrinkage Curve model was developedand applied. Crack propagation through laminates with a different alumina/zirconia thickness ratio wasdescribed with the help of scanning electron microscopy and confocal laser microscopy.

English abstract

tAl2O3and ZrO2monoliths as well as layered Al2O3/ZrO2composites with a varying layer thickness ratiowere prepared by electrophoretic deposition. The sintering shrinkage of these materials in the transversal(perpendicular to the layers, i.e. in the direction of deposition) as well as in the longitudinal (parallelwith layers interfaces) direction were monitored using high-temperature dilatometry. The sintering oflayered composites exhibited anisotropic behaviour. The detailed study revealed that sintering shrinkagein the longitudinal direction was governed by alumina (material with a higher sintering temperature),whilst in the transversal direction it was accelerated by the directional sintering of zirconia layers. Forinterpretation of such anisotropic sintering kinetics, the Master Shrinkage Curve model was developedand applied. Crack propagation through laminates with a different alumina/zirconia thickness ratio wasdescribed with the help of scanning electron microscopy and confocal laser microscopy.

Keywords

Alumina/zirconia laminate, Sintering shrinkage, Master sintering curve, Crack deflection

Released

01.11.2017

ISBN

0955-2219

Periodical

Journal of the European Ceramic Society

Year of study

37

Number

14

State

GB

Pages from

4287

Pages to

4295

Pages count

9

Documents

BibTex


@article{BUT141456,
  author="Karel {Maca} and Václav {Pouchlý} and Daniel {Drdlík} and Hynek {Hadraba} and Zdeněk {Chlup}",
  title="Dilatometric study of anisotropic sintering of alumina/zirconialaminates with controlled fracture behaviour",
  annote="tAl2O3and ZrO2monoliths as well as layered Al2O3/ZrO2composites with a varying layer thickness ratiowere prepared by electrophoretic deposition. The sintering shrinkage of these materials in the transversal(perpendicular to the layers, i.e. in the direction of deposition) as well as in the longitudinal (parallelwith layers interfaces) direction were monitored using high-temperature dilatometry. The sintering oflayered composites exhibited anisotropic behaviour. The detailed study revealed that sintering shrinkagein the longitudinal direction was governed by alumina (material with a higher sintering temperature),whilst in the transversal direction it was accelerated by the directional sintering of zirconia layers. Forinterpretation of such anisotropic sintering kinetics, the Master Shrinkage Curve model was developedand applied. Crack propagation through laminates with a different alumina/zirconia thickness ratio wasdescribed with the help of scanning electron microscopy and confocal laser microscopy.",
  chapter="141456",
  doi="10.1016/j.jeurceramsoc.2017.04.030",
  howpublished="print",
  number="14",
  volume="37",
  year="2017",
  month="november",
  pages="4287--4295",
  type="journal article in Web of Science"
}