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Influence of bulk energy and triple junction mobility on interface kinetics - A tool for interpretation of experiments

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    0506917 - ÚFM 2020 RIV GB eng J - Journal Article
    Hackl, K. - Khan, A.U. - Fischer, F. D. - Svoboda, Jiří
    Influence of bulk energy and triple junction mobility on interface kinetics - A tool for interpretation of experiments.
    Acta Materialia. Roč. 174, AUG (2019), s. 310-318. ISSN 1359-6454. E-ISSN 1873-2453
    R&D Projects: GA ČR(CZ) GA17-01641S
    Institutional support: RVO:68081723
    Keywords : Grain boundary migration * Grain boundary kinetics * Interfaces * Triple junction * Thermodynamical extremal principle * Parameter identification
    OECD category: Thermodynamics
    Impact factor: 7.656, year: 2019
    Method of publishing: Limited access
    https://www.sciencedirect.com/science/article/pii/S1359645419302782?via%3Dihub

    A material system consisting of a lamellar grain structure adjacent to a large single grain is investigated. The system evolution is driven by changing of interface energy of the lamellar structure as well as by difference in bulk energies stored in the single grain and the lamellar grains. The triple junctions and the grain boundaries are assumed to have finite mobilities representing kinetic material parameters of system. A complete analysis of the kinetics of this system is provided, which involves several possible scenarios depending on the values of the geometrical and material parameters of the system. The scenarios are fully classified. Moreover, the analysis offers a way, how the values of the material parameters (interface energy densities, difference in bulk energies and mobilities) can be extracted from the measured system kinetics and geometry.
    Permanent Link: http://hdl.handle.net/11104/0298654

     
     
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