Publication result detail

Description of strengthening mechanism in layered ceramic composites

ŠTEGNEROVÁ, K.; NÁHLÍK, L.; HUTAŘ, P.

Original Title

Description of strengthening mechanism in layered ceramic composites

English Title

Description of strengthening mechanism in layered ceramic composites

Type

Scopus Article

Original Abstract

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.

English abstract

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.

Keywords

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

Key words in English

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

Authors

ŠTEGNEROVÁ, K.; NÁHLÍK, L.; HUTAŘ, P.

RIV year

2016

Released

21.07.2015

Publisher

Trans Tech Publications, Switzerland

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Volume

XIV

Number

665

State

Swiss Confederation

Pages from

93

Pages to

96

Pages count

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"
}