Detail publikace
Crack healing behaviour of Al2O3/SiC nanocomposite ceramicS
FLAŠAR, P. DLOUHÝ, I. CHLUP, Z.
Anglický název
Crack healing behaviour of Al2O3/SiC nanocomposite ceramicS
Typ
Stať ve sborníku v databázi WoS či Scopus
Jazyk
en
Originální abstrakt
Indentation strength and self-crack-healing ability were systematically studied using beams containing a semi-elliptical surface crack made by Vickers indentor. Beams of Al2O3/SiC ceramic nanocomposite with a good self-crack-healing ability predetermined for four-point and three-point bending test were prepared by ceramographics techniques. Flexural strength and fracture toughness were determined using three- and four-point bend method. Thermal aging at 1573 K for 1h was applied to heal the samples with indentation pre-cracking. Fractographical analyses using an optical and/or scanning electron microscopy has been carried out to investigate the surface crack behaviour. Very good self-crack healing ability has been proved for surface microcracks having length up to 250 um and depth no higher than 100 um.
Klíčová slova anglicky
Al2O3/SiC, alumina based nanocomposite, self-crack-healing, flexural strength, fracture toughness, Vickers indentation
Vydáno
2006-08-18
Nakladatel
VŠB Ostrava
Místo
Ostrava
Kniha
New methods of demage and failure analysis of structural parts
Strany od–do
215–222
Počet stran
7
BIBTEX
@inproceedings{BUT21818,
author="Petr {Flašar} and Ivo {Dlouhý} and Zdeněk {Chlup}",
title="Crack healing behaviour of Al2O3/SiC nanocomposite ceramicS",
booktitle="New methods of demage and failure analysis of structural parts",
year="2006",
pages="215--222",
publisher="VŠB Ostrava",
address="Ostrava"
}