The evolution of the nanoscale dissipative structures in a distribution of defects within the isothermally irradiated f.c.c. crystal

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dc.contributor.author Tatarenko, Valentyn A.
dc.contributor.author Selyshchev, Pavel
dc.contributor.author Oliinyk, Olena V.
dc.contributor.author Park, Yong Bum
dc.date.accessioned 2014-08-11T11:16:29Z
dc.date.issued 2014
dc.description.abstract A kinetic model for the influence of external noises such as fluctuations of the vacancies’ generation rate and inhomogeneity of irradiated f.c.c. crystal on the formation of nanoscale modulated dissipative structure in a spatial distribution of vacancies is considered. The generation rate of vacancies all over the sites and a density of their dislocation-type sinks are modelled as independent random uniform stationary fields and with certain defined parameters of fluctuation correlations— spatial and temporal ones. Such stochastic fields can induce a spatial redistribution of vacancies that can lead to their density stationary uniform field or stochastic one. By the average value and correlation functions of these fluctuations, the conditions are determined for interacting fluctuations of the vacancies’ density, under which this homogeneous random field becomes unstable in relation to the stochastic field with a spatially periodic mean distribution of vacancies’ density. For instance, with f.c.c. nickel as a model of the irradiated functional material, the temperature dependence of spatial period d(T) of the modulated dissipative structure of vacancies’ subsystem in f.c.c. crystal is numerically forecasted and analysed, taking into account the total (‘electrochemical’ + ‘straininduced’) interaction between vacancies. Such d(T)-dependence is also determined by the kinetic characteristics of vacancies’ redistribution. en_US
dc.description.embargo 2015-05-30
dc.description.librarian hb2014 en_US
dc.description.sponsorship The Ministry of Science and Technology, Korea en_US
dc.description.uri http://www.tandfonline.com/loi/tphm20 en_US
dc.identifier.citation Valentyn A. Tatarenko, Pavlo O. Selyshchev, Olena V. Oliinyk & Yong Bum Park (2014) The evolution of the nanoscale dissipative structures in a distribution of defects within the isothermally irradiated f.c.c. crystal, Philosophical Magazine, 94:24, 2724-2749, DOI: 10.1080/14786435.2014.932458. en_US
dc.identifier.issn 1478-6435 (print)
dc.identifier.issn 1478-6443 (online)
dc.identifier.other 10.1080/14786435.2014.932458
dc.identifier.uri http://hdl.handle.net/2263/41159
dc.language.iso en en_US
dc.publisher Taylor & Francis en_US
dc.rights © 2014 Taylor and Francis. This is an electronic version of an article published in Philosophical Magazine, 2014, vol. 94, no. 24, pp. 2724–2749, doi : 10.1080/14786435.2014.932458. Philosophical Magazine is available online at : http://www.tandfonline.com/loi/tphm20. en_US
dc.subject Irradiated functional materials en_US
dc.subject Vacancies en_US
dc.subject Nanoscale dissipative structure en_US
dc.subject ‘Electrochemical’ interaction en_US
dc.subject ‘Strain-induced’ interaction en_US
dc.title The evolution of the nanoscale dissipative structures in a distribution of defects within the isothermally irradiated f.c.c. crystal en_US
dc.type Postprint Article en_US


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