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Strategies for fracture toughness, strength and reliability optimisation of ceramic-ceramic laminates
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SYSNO ASEP 0370043 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Strategies for fracture toughness, strength and reliability optimisation of ceramic-ceramic laminates Author(s) Šestáková, L. (AT)
Bermejo, R. (AT)
Chlup, Zdeněk (UFM-A) RID, ORCID
Danzer, R. (AT)Number of authors 4 Source Title International Journal of Materials Research. - : Walter de Gruyter - ISSN 1862-5282
Roč. 102, č. 6 (2011), s. 613-626Number of pages 14 s. Language eng - English Country DE - Germany Keywords Ceramic laminates ; Layered ceramics ; Residual stress ; Fracture toughness ; Threshold strength Subject RIV JL - Materials Fatigue, Friction Mechanics CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000292525800004 DOI 10.3139/146.110523 Annotation Layered ceramics are,compared to conventionalmono- lithicceramics,a good choicefor highly loaded structural applications havingimproved fracture toughness, strength and mechanical reliability. The useof tailored residual compressive stresses in the layers isthe key parameterto adjust theseproperties. In thiswork two types of ceramics are analysed whichhaveexternal(ECS-laminates)or inter- nal(ICS-laminates) compressive stresses. The most impor- tant factors havinginfluenceon the strength and toughness of theselaminates arediscussed. Clearrecommendations on the properselectionof a suitable mismatch strain, vol- ume ratio of the layer materials and thickness and distribu- tion of individuallayers aregiven, eitherto achieve a high toughness and/or a high lower limit (threshold)forstrength. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2012
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