Detail publikačního výsledku

Description of strengthening mechanism in layered ceramic composites

ŠTEGNEROVÁ, K.; NÁHLÍK, L.; HUTAŘ, P.

Originální název

Description of strengthening mechanism in layered ceramic composites

Anglický název

Description of strengthening mechanism in layered ceramic composites

Druh

Článek Scopus

Originální abstrakt

The aim of this paper is to describe specific crack behaviour in the layered alumina-zirconia ceramic composite with strong interfaces and its strengthening mechanism. Different coefficients of thermal expansion of individual constituents of ceramic composite cause high residual stresses inside the layers during the sintering process. Compressive residual stresses can significantly influence the crack propagation through the laminate hereby improve the resistance of the material to the crack propagation. Estimation of crack behaviour in laminate was performed assuming the validity of linear elastic fracture mechanics using the criterion based on the strain energy density factor derived by Sih. This paper describes the strengthening mechanism in layered ceramic composites and prediction of their failure which contributes to better understanding of the fracture behaviour of the layered ceramic composites.

Anglický abstrakt

The aim of this paper is to describe specific crack behaviour in the layered alumina-zirconia ceramic composite with strong interfaces and its strengthening mechanism. Different coefficients of thermal expansion of individual constituents of ceramic composite cause high residual stresses inside the layers during the sintering process. Compressive residual stresses can significantly influence the crack propagation through the laminate hereby improve the resistance of the material to the crack propagation. Estimation of crack behaviour in laminate was performed assuming the validity of linear elastic fracture mechanics using the criterion based on the strain energy density factor derived by Sih. This paper describes the strengthening mechanism in layered ceramic composites and prediction of their failure which contributes to better understanding of the fracture behaviour of the layered ceramic composites.

Klíčová slova

Layered ceramic composites, residual stresses, crack propagation, strain energy density factor.

Klíčová slova v angličtině

Layered ceramic composites, residual stresses, crack propagation, strain energy density factor.

Autoři

ŠTEGNEROVÁ, K.; NÁHLÍK, L.; HUTAŘ, P.

Rok RIV

2016

Vydáno

21.07.2015

Nakladatel

Trans Tech Publications, Switzerland

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Svazek

XIV

Číslo

665

Stát

Švýcarská konfederace

Strany od

93

Strany do

96

Strany počet

4

BibTex

@article{BUT115362,
  author="Kateřina {Štegnerová} and Luboš {Náhlík} and Pavel {Hutař}",
  title="Description of strengthening mechanism in layered ceramic composites",
  journal="Key Engineering Materials (print)",
  year="2015",
  volume="XIV",
  number="665",
  pages="93--96",
  doi="10.4028/www.scientific.net/KEM.665.93",
  issn="1013-9826"
}