About: Substitutional diffusion in multicomponent solids with non-ideal sources and sinks for vacancies

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Description	Based on previous work by the authors the diffusion equations for a multicomponent solid are derived. Generation and annihilation of vacancies are described by an evolution law which is directly coupled with an eigenstrain rate. Manning’s correlation factor f is used in the kinetic factor for diffusion of vacancies. In addition to presentation of the diffusion equations, a rigorous treatment of the boundary conditions, assuming no or an ideal source and sink for vacancies at the surface, is presented. As an instructive example development of the site fractions of the components and the eigenstress state are demonstrated for a multicomponent chemically inhomogeneous layer on a substrate. Both the role of nonlinear terms and the correlation factor f in the diffusion equations are studied. Computational procedures to calculate to the proper boundary conditions are also outlined. Based on previous work by the authors the diffusion equations for a multicomponent solid are derived. Generation and annihilation of vacancies are described by an evolution law which is directly coupled with an eigenstrain rate. Manning’s correlation factor f is used in the kinetic factor for diffusion of vacancies. In addition to presentation of the diffusion equations, a rigorous treatment of the boundary conditions, assuming no or an ideal source and sink for vacancies at the surface, is presented. As an instructive example development of the site fractions of the components and the eigenstress state are demonstrated for a multicomponent chemically inhomogeneous layer on a substrate. Both the role of nonlinear terms and the correlation factor f in the diffusion equations are studied. Computational procedures to calculate to the proper boundary conditions are also outlined. (en)
Title	Substitutional diffusion in multicomponent solids with non-ideal sources and sinks for vacancies Substitutional diffusion in multicomponent solids with non-ideal sources and sinks for vacancies (en)
skos:prefLabel	Substitutional diffusion in multicomponent solids with non-ideal sources and sinks for vacancies Substitutional diffusion in multicomponent solids with non-ideal sources and sinks for vacancies (en)
skos:notation	RIV/68081723:_____/10:00352150!RIV11-MSM-68081723
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(OC10029), Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika	7
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Svoboda, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	290972
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/10:00352150
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Substitutional diffusion; Vacancies; Annihilation (en)
http://linked.open.../riv/klicoveSlovo	Vacancies Annihilation Substitutional diffusion
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[DD67F74343EE]
http://linked.open...i/riv/nazevZdroje	Acta Materialia
http://linked.open...in/vavai/riv/obor	BJ
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Thermodynamic Modeling of Microstructure Evolution in Nanocomposites
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	58
http://linked.open...iv/tvurceVysledku	Fischer, F. D. Svoboda, Jiří
http://linked.open...ain/vavai/riv/wos	000276523200042
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
issn	1359-6454
number of pages	10 (xsd:int)

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