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Mechanisms of microvoid formation within KCl single crystals in the pulse energy release area of laser focused radiation

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dc.contributor.author Boyko, Yu.I.
dc.contributor.author Volosyuk, M.A.
dc.contributor.author Kononenko, V.G.
dc.date.accessioned 2018-06-14T19:02:44Z
dc.date.available 2018-06-14T19:02:44Z
dc.date.issued 2012
dc.identifier.citation Mechanisms of microvoid formation within KCl single crystals in the pulse energy release area of laser focused radiation / Yu.I. Boyko, M.A. Volosyuk, V.G. Kononenko // Functional Materials. — 2012. — Т. 19, № 3. — С. 289-296. — Бібліогр.: 29 назв. — англ. uk_UA
dc.identifier.issn 1027-5495
dc.identifier.uri http://dspace.nbuv.gov.ua/handle/123456789/135329
dc.description.abstract Mechanism of micropore formation in the area of pulse energy release of the laser focused radiation in KCI single crystals was studied experimentally at low (77 K) and room (300 K) temperatures. The pulse duration was varied from 510⁻⁸ s to 10⁻³ s and pulse energy — from 1 to 20 J. The observed pore sizes were (0.75 ÷ 120)*10⁻⁶ m. The dislocation structure around the pores and photo-elastic stress pattern were studied. For the experimental results obtained the following values were estimated: the initial pressure in the relaxation area (2*10⁹N/m²), the heated-up "nucleus" temperature (1100 K), and the laser pulse absorbed energy corresponding to a given pore size. As it is seen from the experiments, the dislocation mechanism contribution into the substance transport for pore sizes less than 10⁻⁵ m is 2 ÷ 4 %, while the rest of substance is taken away by crowdion (interstitial atom) mechanism. The diffusion contribution into the mass transport is found to be negligible. uk_UA
dc.language.iso en uk_UA
dc.publisher НТК «Інститут монокристалів» НАН України uk_UA
dc.relation.ispartof Functional Materials
dc.subject Characterization and properties uk_UA
dc.title Mechanisms of microvoid formation within KCl single crystals in the pulse energy release area of laser focused radiation uk_UA
dc.title.alternative Механізми формування мікропорожнин у монокристалах KCI в очагу імпульсного енерговиділення сфокусованого лазерного випромінювання uk_UA
dc.type Article uk_UA
dc.status published earlier uk_UA


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