Publication result detail

Effect of residual stresses to the crack path in alumina/zirconia laminates

CHLUP, Z.; NOVOTNÁ, L.; ŠIŠKA, F.; DRDLÍK, D.; HADRABA, H.

Original Title

Effect of residual stresses to the crack path in alumina/zirconia laminates

English Title

Effect of residual stresses to the crack path in alumina/zirconia laminates

Type

WoS Article

Original Abstract

Laminates with alternating layers are well known from nature. The strongly bonded alumina/zirconia (Al2O3/ZrO2) layers can combine high fracture resistance with high strength and stiffness when properly tailored. The presence of compressive residual stresses formed in Al2O3 layers can suppress and deflect cracks propagating through the layers. The crack path is governed by both the elastic properties and the internal stress field of individual layers. The laminates with various layer-thickness ratios ranging from 0.1 to 3 were used to investigate the effect of residual stresses and influence of crack formation pattern on the crack path development. The indentation surface cracks observed in various alumina-zirconia laminates exhibit the same crack deflection independently on the level of internal stresses. The crack deflection observed on the fracture surfaces of bending specimens was related to the indentations cracks. The complicated crack path was explained experimentally by 3D reconstruction with the support of numerical simulations.

English abstract

Laminates with alternating layers are well known from nature. The strongly bonded alumina/zirconia (Al2O3/ZrO2) layers can combine high fracture resistance with high strength and stiffness when properly tailored. The presence of compressive residual stresses formed in Al2O3 layers can suppress and deflect cracks propagating through the layers. The crack path is governed by both the elastic properties and the internal stress field of individual layers. The laminates with various layer-thickness ratios ranging from 0.1 to 3 were used to investigate the effect of residual stresses and influence of crack formation pattern on the crack path development. The indentation surface cracks observed in various alumina-zirconia laminates exhibit the same crack deflection independently on the level of internal stresses. The crack deflection observed on the fracture surfaces of bending specimens was related to the indentations cracks. The complicated crack path was explained experimentally by 3D reconstruction with the support of numerical simulations.

Keywords

Laminates; Alumina; Zirconia; Residual/internal stresses; Crack path

Key words in English

Laminates; Alumina; Zirconia; Residual/internal stresses; Crack path

Authors

CHLUP, Z.; NOVOTNÁ, L.; ŠIŠKA, F.; DRDLÍK, D.; HADRABA, H.

RIV year

2021

Released

13.08.2020

ISBN

0955-2219

Periodical

Journal of the European Ceramic Society

Volume

40

Number

15

State

United Kingdom of Great Britain and Northern Ireland

Pages from

5810

Pages to

5818

Pages count

9

URL

https://www.sciencedirect.com/science/article/pii/S0955221920305148

BibTex

@article{BUT164765,
  author="Zdeněk {Chlup} and Lenka {Novotná} and Filip {Šiška} and Daniel {Drdlík} and Hynek {Hadraba}",
  title="Effect of residual stresses to the crack path in alumina/zirconia laminates",
  journal="Journal of the European Ceramic Society",
  year="2020",
  volume="40",
  number="15",
  pages="5810--5818",
  doi="10.1016/j.jeurceramsoc.2020.06.044",
  issn="0955-2219",
  url="https://www.sciencedirect.com/science/article/pii/S0955221920305148"
}