Výsledky vyhledávání - "Budnikov, A.T."

Investigation of damaged layer formed at mechanical treatment of sapphire using three-crystal X-ray diffraction method

Autor: Tkachenko, V.F., Kryvonogov, S.I., Budnikov, A.T., Lukienko, O.A., Vovk, E.A.

Publikováno v: Functional Materials. 21:171-175

The methods of three-crystal X-ray diffractometry were used for investigating structure perfection in surface-adjacent damaged layer (DL) formed in the process of mechanical and chemical-mechanical treatment of sapphire crystals with the surface orie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95269fc80f9d56f733328866e3dc1507
https://doi.org/10.15407/fm21.02.171

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Polishing of AlN/sapphire substrates obtained by thermochemical nitridation of sapphire

Autor: Vovk, E.A., Budnikov, A.T., Nizhankovskyi, S.V., Kryvonogov, S.I., Krukhmalev, A.A., Dobrotvorskaya, M.V.

Publikováno v: Functional materials. 20:253-258

Physicochemical conditions and polishing suspension composition were established for polishing of AlN/sapphire templates obtained by thermochemical nitridation of sapphire. The use of the polishing suspension based on aerosil and KOH with pH 10.3 all

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f6ac3cfd53ce4fc43ccf23b3f8b7484
https://doi.org/10.15407/fm20.02.253

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Study of nature of some defects visible in polarized light in sapphire signle crystals

Autor: Tkachenko, V.F., Dan`ko, A.Ya., Puzikov, V.M., Budnikov, A.T., Lukienko, O.A., Sidelnikova, N.S., Adonkin, G.T.

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 anal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1456::a210383cc7559e45bf6fad7d468ffa72
http://dspace.nbuv.gov.ua/handle/123456789/136538

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Structure perfection of bulk and near-surface layers in sapphire single crystals

Autor: Tkachenko, V.F., Puzikov, V.M., Dan`ko, A.Ya., Budnikov, A.T., Lukienko, O.A.

Triple-crystal X-ray diffractometry has been used to study the structure perfection in bulk and surface layer of basal-oriented sapphire single crystals grown using horizontal directional crystallization (HDC) in reducing atmosphere by the Czochralsk

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1456::23c435bac9d8c17299c84f34f6ec9b68
http://dspace.nbuv.gov.ua/handle/123456789/136939

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Diffusion and following isothermal desorption of impurity and matrix atoms out of sapphire and its melt

Autor: Katrich, N.P., Budnikov, A.T., Krivonogov, S.I., Miroshnikov, Yu.P.

Isotermal desorption of impurity matrix atoms (as CO, CO₂, H₂, H₂O) out os sapphire bulk has been studied. A theoretical model has been proposed for diffusion mechanism of the atoms included in gas-vacancy complexes 2Vᶦ-Mᶦ (Mᶦ being an at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1456::290327dee6f782d36543d7624fb03f5c
http://dspace.nbuv.gov.ua/handle/123456789/140078

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Optical properties and fine faulty structure of sapphire crystals grown in low pressure CO gas atmosphere

Autor: Puzikov, V.M., Danko, A.Ya., Adonkin, G.T., Sidelnikova, N.S., Tkachenko, V.F., Budnikov, A.T.

Presented in this paper are the results of the study of optical characteristics and fine faulty structure of big sapphire crystals grown in a CO-based low pressure (0.1...0.3 torr) gas atmosphere. Optimal conditions for annealing optical elements of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1456::d3cca150cf3af100aa9bdc6a17436b0b
http://dspace.nbuv.gov.ua/handle/123456789/121078

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