Number of the records: 1  

Microstructure, fracture and damage mechanisms in rare-earth doped silicon nitride ceramics

  1. 1.
    SYSNO ASEP0370045
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleMicrostructure, fracture and damage mechanisms in rare-earth doped silicon nitride ceramics
    Author(s) Tatarko, P. (SK)
    Chlup, Zdeněk (UFM-A) RID, ORCID
    Dusza, J. (SK)
    Number of authors3
    Source TitleKey Engineering Materials - ISSN 1013-9826
    Roč. 465, - (2011), s. 93-96
    Number of pages4 s.
    ActionMSMF-6: Materials Structure and Micromechanics of Fracture VI
    Event date28.06.2010-30.06.2010
    VEvent locationBrno
    CountryCZ - Czech Republic
    Event typeWRD
    Languageeng - English
    CountryCH - Switzerland
    Keywordsrare-earth element ; silicon nitride ; composite ; fracture ; mechanical properties
    Subject RIVJL - Materials Fatigue, Friction Mechanics
    CEZAV0Z20410507 - UFM-A (2005-2011)
    UT WOS000291704700018
    AnnotationInfluence of rare-earth oxide additives on the strength, fracture toughness and tribological behaviour of hot-pressed Si(3)N(4) and Si(3)N(4)/SiC micro/nano-composites has been investigated. Four-point bending mode and ball on disc methods have been used for strength and wear tests and Single-Edge V-Notched Beam, Chevron Notched Beam, Indentation Strength and Indentation Fracture techniques for fracture toughness measurement. Fractography has been used to characterize strength limiting defects, fracture micromechanisms and damage mechanisms during the wear test. The strength values were strongly influenced by the present processing flaws. Wear behavior is significantly influenced by the chemical composition and by the microstructure of the materials.
    WorkplaceInstitute of Physics of Materials
    ContactYvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
    Year of Publishing2012
Number of the records: 1  

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