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Characterization of the matrix-twin interface of a (1 0 -1 2) twin during growth

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    SYSNO ASEP0431981
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleCharacterization of the matrix-twin interface of a (1 0 -1 2) twin during growth
    Author(s) Ostapovets, Andriy (UFM-A) RID, ORCID
    Serra, A. (ES)
    Number of authors2
    Source TitlePhilosophical Magazine. - : Taylor & Francis - ISSN 1478-6435
    Roč. 94, č. 25 (2014), s. 2827-2839
    Number of pages13 s.
    Languageeng - English
    CountryGB - United Kingdom
    Keywordstwinning ; twin boundaries ; disconnections
    Subject RIVBM - Solid Matter Physics ; Magnetism
    Subject RIV - cooperationInstitute of Physics - Solid Matter Physics ; Magnetism
    R&D ProjectsEE2.3.30.0063 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    Institutional supportUFM-A - RVO:68081723
    UT WOS000342137500001
    DOI10.1080/14786435.2014.933906
    AnnotationA model of twin growth in magnesium is presented together with the analysis of defects responsible for this growth. The twin interface is represented by {10-12} and basal-prismatic facets. Disclinations are situated in the facet junctions creating dipoles superimposed on basal-prismatic and conjugate twin facets. The migration of facets is mediated by the conservative motion of interfacial disconnections. The {10-12} interfaces contain b2/2 twinning disconnections. The facet junctions serve as sources and sinks for these defects. Two types of disconnections (bbp1/1 and bbp2/2) were observed in basal-prismatic boundary. The dipoles of bbp1/1 disconnections were nucleated in the vicinity of existing defects of this type. Interaction of this dipole with existing bbp1/1 leads to the creation of a bbp2/2 disconnection, which is later absorbed in the facet junction. The nucleation of bbp2/2 dipoles was not observed. In twin embryo growth, the basal-prismatic segments remain coherent with a fixed length,while the twin segments grow indefinitely
    WorkplaceInstitute of Physics of Materials
    ContactYvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
    Year of Publishing2015
Number of the records: 1  

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