Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals
Pulse-echo method in the frequency range of 37.5—232.5 MHz in LiF crystals at T=300 K has been used to study the behaviour of dislocation decrement Δd(f) at variations of the residual strain value and X-ray radiation in the range of 0—400 R. It has been found out that with the increasing doses o...
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| Veröffentlicht in: | Functional Materials |
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| Datum: | 2013 |
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| Format: | Artikel |
| Sprache: | English |
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НТК «Інститут монокристалів» НАН України
2013
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| Zitieren: | Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals / G.A.Petchenko // Functional Materials. — 2013. — Т. 20, № 3. — С. 315-320. — Бібліогр.: 19 назв. — англ. |
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Petchenko, G.A. 2017-06-11T06:08:13Z 2017-06-11T06:08:13Z 2013 Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals / G.A.Petchenko // Functional Materials. — 2013. — Т. 20, № 3. — С. 315-320. — Бібліогр.: 19 назв. — англ. 1027-5495 DOI: dx.doi.org/10.15407/fm20.03.315 https://nasplib.isofts.kiev.ua/handle/123456789/120085 Pulse-echo method in the frequency range of 37.5—232.5 MHz in LiF crystals at T=300 K has been used to study the behaviour of dislocation decrement Δd(f) at variations of the residual strain value and X-ray radiation in the range of 0—400 R. It has been found out that with the increasing doses of radiation the effect of amplitude damping of the dislocation resonance can be observed which leads to a marked restoration of initial acoustic characteristics of the crystals. It has been discovered that the effective length of the dislocation segment L decreases monotonically, while the coefficient of the dynamic viscosity B retains its value at increasing the crystals irradiation dose. The experimental results have been discussed in the framework of existing theories. en НТК «Інститут монокристалів» НАН України Functional Materials Characterization and properties Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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| title |
Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals |
| spellingShingle |
Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals Petchenko, G.A. Characterization and properties |
| title_short |
Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals |
| title_full |
Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals |
| title_fullStr |
Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals |
| title_full_unstemmed |
Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals |
| title_sort |
research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in lif crystals |
| author |
Petchenko, G.A. |
| author_facet |
Petchenko, G.A. |
| topic |
Characterization and properties |
| topic_facet |
Characterization and properties |
| publishDate |
2013 |
| language |
English |
| container_title |
Functional Materials |
| publisher |
НТК «Інститут монокристалів» НАН України |
| format |
Article |
| description |
Pulse-echo method in the frequency range of 37.5—232.5 MHz in LiF crystals at T=300 K has been used to study the behaviour of dislocation decrement Δd(f) at variations of the residual strain value and X-ray radiation in the range of 0—400 R. It has been found out that with the increasing doses of radiation the effect of amplitude damping of the dislocation resonance can be observed which leads to a marked restoration of initial acoustic characteristics of the crystals. It has been discovered that the effective length of the dislocation segment L decreases monotonically, while the coefficient of the dynamic viscosity B retains its value at increasing the crystals irradiation dose. The experimental results have been discussed in the framework of existing theories.
|
| issn |
1027-5495 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/120085 |
| citation_txt |
Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals / G.A.Petchenko // Functional Materials. — 2013. — Т. 20, № 3. — С. 315-320. — Бібліогр.: 19 назв. — англ. |
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AT petchenkoga researchofthepreliminarydeformationandirradiationeffectontheviscousdampingofdislocationsinlifcrystals |
| first_indexed |
2025-12-01T00:23:53Z |
| last_indexed |
2025-12-01T00:23:53Z |
| _version_ |
1850858844260925440 |