MODELING OF VOID FORMATION UNDER REACTION DIFFUSION IN BINARY SYSTEM
نویسندگان
چکیده
The proposed model of void formation takes into account existence two types sinks/sources non-equilibrium vacancies, depending on their location: in the phase volume and at interfacial boundaries. At interdiffusion reaction diffusion which happens vacancy atomic mechanism, inequality atoms fluxes is caused by differential mobility, give rise to a directional flux vacancies. This vacancies cause an appearance areas zone with supersaturation deficiency where act. It believed that voids arise certain periodicity near boundary, there due different mobility components. move growing phase, sizes change. radius increases as long region supersaturation. begins decrease if area zone, negative (the concentration less than equilibrium) until it disappears. study influence kinetics during binary system was carried out computer simulation. In case efficient operation only borders (vacancies do not work volume) we get significant saturation leads rapid growth pore size differences. If well efficiency boundaries does affect result this case), then almost everywhere equilibrium established, vast majority pores have same (maximum) size. are much smaller previous case.
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ژورنال
عنوان ژورنال: ?????? ??????????? ????????????
سال: 2022
ISSN: ['2078-6115']
DOI: https://doi.org/10.31651/2076-5851-2021-74-89