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...
Збережено в:
| Дата: | 2013 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
НТК «Інститут монокристалів» НАН України
2013
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| Назва видання: | Functional Materials |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120085 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1200852017-06-12T03:03:23Z Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals Petchenko, G.A. Characterization and properties 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. 2013 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/120085 en Functional Materials НТК «Інститут монокристалів» НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Characterization and properties Characterization and properties |
| spellingShingle |
Characterization and properties Characterization and properties Petchenko, G.A. Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals Functional Materials |
| 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. |
| format |
Article |
| author |
Petchenko, G.A. |
| author_facet |
Petchenko, G.A. |
| author_sort |
Petchenko, G.A. |
| title |
Research of the preliminary deformation and irradiation effect on the viscous damping of dislocations in LiF crystals |
| 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 |
| publisher |
НТК «Інститут монокристалів» НАН України |
| publishDate |
2013 |
| topic_facet |
Characterization and properties |
| url |
http://dspace.nbuv.gov.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. |
| series |
Functional Materials |
| work_keys_str_mv |
AT petchenkoga researchofthepreliminarydeformationandirradiationeffectontheviscousdampingofdislocationsinlifcrystals |
| first_indexed |
2023-10-18T20:36:11Z |
| last_indexed |
2023-10-18T20:36:11Z |
| _version_ |
1796150630315720704 |