Mechanisms of microvoid formation within KCl single crystals in the pulse energy release area of laser focused radiation
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...
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| Veröffentlicht in: | Functional Materials |
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| Datum: | 2012 |
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| Sprache: | English |
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НТК «Інститут монокристалів» НАН України
2012
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| Zitieren: | 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. |
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Boyko, Yu.I. Volosyuk, M.A. Kononenko, V.G. 2018-06-14T19:02:44Z 2018-06-14T19:02:44Z 2012 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. 1027-5495 https://nasplib.isofts.kiev.ua/handle/123456789/135329 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. en НТК «Інститут монокристалів» НАН України Functional Materials Characterization and properties Mechanisms of microvoid formation within KCl single crystals in the pulse energy release area of laser focused radiation Механізми формування мікропорожнин у монокристалах KCI в очагу імпульсного енерговиділення сфокусованого лазерного випромінювання Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Mechanisms of microvoid formation within KCl single crystals in the pulse energy release area of laser focused radiation |
| spellingShingle |
Mechanisms of microvoid formation within KCl single crystals in the pulse energy release area of laser focused radiation Boyko, Yu.I. Volosyuk, M.A. Kononenko, V.G. Characterization and properties |
| title_short |
Mechanisms of microvoid formation within KCl single crystals in the pulse energy release area of laser focused radiation |
| title_full |
Mechanisms of microvoid formation within KCl single crystals in the pulse energy release area of laser focused radiation |
| title_fullStr |
Mechanisms of microvoid formation within KCl single crystals in the pulse energy release area of laser focused radiation |
| title_full_unstemmed |
Mechanisms of microvoid formation within KCl single crystals in the pulse energy release area of laser focused radiation |
| title_sort |
mechanisms of microvoid formation within kcl single crystals in the pulse energy release area of laser focused radiation |
| author |
Boyko, Yu.I. Volosyuk, M.A. Kononenko, V.G. |
| author_facet |
Boyko, Yu.I. Volosyuk, M.A. Kononenko, V.G. |
| topic |
Characterization and properties |
| topic_facet |
Characterization and properties |
| publishDate |
2012 |
| language |
English |
| container_title |
Functional Materials |
| publisher |
НТК «Інститут монокристалів» НАН України |
| format |
Article |
| title_alt |
Механізми формування мікропорожнин у монокристалах KCI в очагу імпульсного енерговиділення сфокусованого лазерного випромінювання |
| description |
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.
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| issn |
1027-5495 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/135329 |
| citation_txt |
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. |
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| first_indexed |
2025-11-30T02:21:29Z |
| last_indexed |
2025-11-30T02:21:29Z |
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