Detail publikačního výsledku

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

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

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

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

Rok RIV

2021

Vydáno

13.08.2020

ISSN

0955-2219

Periodikum

Journal of the European Ceramic Society

Svazek

40

Číslo

15

Stát

Spojené království Velké Británie a Severního Irska

Strany od

5810

Strany do

5818

Strany počet

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"
}