Počet záznamů: 1  

Calculation of ternary interdiffusion coefficients using a single diffusion couple

  1. 1.
    0463571 - ÚFM 2017 RIV SK eng J - Článek v odborném periodiku
    Čermák, Jiří - Rothová, Věra
    Calculation of ternary interdiffusion coefficients using a single diffusion couple.
    Kovové materiály. Roč. 54, č. 5 (2016), s. 305-314. ISSN 0023-432X
    Grant CEP: GA MŠk(CZ) ED1.1.00/02.0068
    Institucionální podpora: RVO:68081723
    Klíčová slova: diffusion * interdiffusion * ternary alloys * ternary diffusion coefficients
    Kód oboru RIV: BJ - Termodynamika
    Obor OECD: Thermodynamics
    Impakt faktor: 0.366, rok: 2016

    In this paper, the simple numerical algorithm is proposed that enables to estimate ternary interdiffusion coefficients D in systems with not too strongly interacting components. D’s are obtained from measurement with a single model diffusion couple. They can be used to predict concentration curves C i (x) (i = 1, 2, 3) in arbitrary time with numerical errors that are comparable with experimental errors of measurement of c i itself and comply with theoretical constraints following from the linear irreversible thermodynamics. The algorithm does not need any external thermodynamic data and external measurements (e.g., it is not necessary to measure the shift of inert markers in the interface). It can be applied using commonly accessible SW, and it is not time-consuming. Values of D are close to those obtained with the help of much more laborious experimental – also approximate – methods.
    Trvalý link: http://hdl.handle.net/11104/0262810