Study of nature of some defects visible in polarized light in sapphire signle crystals
Using the precision technique of triple-crystal X-ray diffractometry, the structure of defect parts has been studied in large-size sapphire crystals grown by the horizontal directed crystallization in reducing gas media. The optical polarization analysis has shown that the conoscopic pattern shape a...
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| Published in: | Functional Materials |
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| Date: | 2007 |
| Main Authors: | , , , , , , |
| Format: | Article |
| Language: | English |
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НТК «Інститут монокристалів» НАН України
2007
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/136538 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Study of nature of some defects visible in polarized light in sapphire signle crystals / V.F. Tkachenko, A.Ya. Dan`ko, V.M. Puzikov, A.T. Budnikov, O.A. Lukienko, N.S. Sidelnikova, G.T. Adonkin // Functional Materials. — 2007. — Т. 14, № 3. — С. 321-326. — Бібліогр.: 8 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862715744864698368 |
|---|---|
| author | Tkachenko, V.F. Dan`ko, A.Ya. Puzikov, V.M. Budnikov, A.T. Lukienko, O.A. Sidelnikova, N.S. Adonkin, G.T. |
| author_facet | Tkachenko, V.F. Dan`ko, A.Ya. Puzikov, V.M. Budnikov, A.T. Lukienko, O.A. Sidelnikova, N.S. Adonkin, G.T. |
| citation_txt | Study of nature of some defects visible in polarized light in sapphire signle crystals / V.F. Tkachenko, A.Ya. Dan`ko, V.M. Puzikov, A.T. Budnikov, O.A. Lukienko, N.S. Sidelnikova, G.T. Adonkin // Functional Materials. — 2007. — Т. 14, № 3. — С. 321-326. — Бібліогр.: 8 назв. — англ. |
| collection | DSpace DC |
| container_title | Functional Materials |
| description | Using the precision technique of triple-crystal X-ray diffractometry, the structure of defect parts has been studied in large-size sapphire crystals grown by the horizontal directed crystallization in reducing gas media. The optical polarization analysis has shown that the conoscopic pattern shape and color spectrum are distorted in that region and optical inhomogeneities are present as a striate structure. In the first case, the responsible defects have been established to be the small-angle dislocation twisting boundaries of the micro-blocks with disorientation angles of 0.2 to 5 angular minutes; in the second one, the macro-blocks with turning angles up to several degrees. Experimental results have been presented making it possible to establish the nature and formation kinetics of the small-angle and large-angle disorientations between the micro- and macro-blocks during the crystal growth and annealing.
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| first_indexed | 2025-12-07T18:00:17Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-136538 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1027-5495 |
| language | English |
| last_indexed | 2025-12-07T18:00:17Z |
| publishDate | 2007 |
| publisher | НТК «Інститут монокристалів» НАН України |
| record_format | dspace |
| spelling | Tkachenko, V.F. Dan`ko, A.Ya. Puzikov, V.M. Budnikov, A.T. Lukienko, O.A. Sidelnikova, N.S. Adonkin, G.T. 2018-06-16T13:23:12Z 2018-06-16T13:23:12Z 2007 Study of nature of some defects visible in polarized light in sapphire signle crystals / V.F. Tkachenko, A.Ya. Dan`ko, V.M. Puzikov, A.T. Budnikov, O.A. Lukienko, N.S. Sidelnikova, G.T. Adonkin // Functional Materials. — 2007. — Т. 14, № 3. — С. 321-326. — Бібліогр.: 8 назв. — англ. 1027-5495 https://nasplib.isofts.kiev.ua/handle/123456789/136538 Using the precision technique of triple-crystal X-ray diffractometry, the structure of defect parts has been studied in large-size sapphire crystals grown by the horizontal directed crystallization in reducing gas media. The optical polarization analysis has shown that the conoscopic pattern shape and color spectrum are distorted in that region and optical inhomogeneities are present as a striate structure. In the first case, the responsible defects have been established to be the small-angle dislocation twisting boundaries of the micro-blocks with disorientation angles of 0.2 to 5 angular minutes; in the second one, the macro-blocks with turning angles up to several degrees. Experimental results have been presented making it possible to establish the nature and formation kinetics of the small-angle and large-angle disorientations between the micro- and macro-blocks during the crystal growth and annealing. en НТК «Інститут монокристалів» НАН України Functional Materials Study of nature of some defects visible in polarized light in sapphire signle crystals Дослідження природи деяких дефектів монокристалів сапфіру, що є видимими у поляризованому світлі Article published earlier |
| spellingShingle | Study of nature of some defects visible in polarized light in sapphire signle crystals Tkachenko, V.F. Dan`ko, A.Ya. Puzikov, V.M. Budnikov, A.T. Lukienko, O.A. Sidelnikova, N.S. Adonkin, G.T. |
| title | Study of nature of some defects visible in polarized light in sapphire signle crystals |
| title_alt | Дослідження природи деяких дефектів монокристалів сапфіру, що є видимими у поляризованому світлі |
| title_full | Study of nature of some defects visible in polarized light in sapphire signle crystals |
| title_fullStr | Study of nature of some defects visible in polarized light in sapphire signle crystals |
| title_full_unstemmed | Study of nature of some defects visible in polarized light in sapphire signle crystals |
| title_short | Study of nature of some defects visible in polarized light in sapphire signle crystals |
| title_sort | study of nature of some defects visible in polarized light in sapphire signle crystals |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/136538 |
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