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dc.contributor.author | Selyshchev, Pavel![]() |
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dc.contributor.author | Akintunde, S.O. (Samuel)![]() |
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dc.date.accessioned | 2016-09-09T06:07:58Z | |
dc.date.available | 2016-09-09T06:07:58Z | |
dc.date.issued | 2014 | |
dc.description.abstract | A theoretical approach to consider formation of chemical compound layer at the interface between initial substances A and B due to the interfacial interaction and diffusion is developed. It is considered situation when speed of interfacial interaction is large enough and diffusion of A-atoms through AB-layer is much more then diffusion of B-atoms. Atoms from A-layer diffuse toward B-atoms and form AB-atoms on the surface of B-layer. B-atoms are assumed to be immobile. The growth kinetics of the AB-layer is described by two differential equations with non-linear coupling, producing a good fit to the experimental data. It is shown that growth of the thickness of the AB-layer determines by dependence of chemical reaction rate on reactants concentration. In special case the thickness of the AB-layer can grow linearly or parabolically depending on that which of processes (interaction or the diffusion) controls the growth. The thickness of AB-layer as function of time is obtained. The moment of time (transition point) at which the linear growth are changed by parabolic is found. | en_ZA |
dc.description.department | Physics | en_ZA |
dc.description.librarian | am2016 | en_ZA |
dc.description.sponsorship | This work was made possible by support from NRF of South Africa. | en_ZA |
dc.description.uri | http://internationalscienceindex.org/journal/Chemical | en_ZA |
dc.identifier.citation | Selyshchev, P & Akintunde, S 2014, 'Formation of chemical compound layer at the interface of initial substances A and B with dominance of diffusion of the A atoms', International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering, vol. 8, no. 6, pp. 549-551. | en_ZA |
dc.identifier.uri | http://hdl.handle.net/2263/56674 | |
dc.language.iso | en | en_ZA |
dc.publisher | World Academy of Science, Engineering and Technology | en_ZA |
dc.rights | © 2014 World Academy of Science, Engineering and Technology | en_ZA |
dc.subject | Phase formation | en_ZA |
dc.subject | Binary systems | en_ZA |
dc.subject | Interfacial reaction | en_ZA |
dc.subject | Diffusion | en_ZA |
dc.subject | Compound layers | en_ZA |
dc.subject | Growth kinetics | en_ZA |
dc.title | Formation of chemical compound layer at the interface of initial substances A and B with dominance of diffusion of the A atoms | en_ZA |
dc.type | Article | en_ZA |