Structural and mechanical characteristics of magnesium-aluminate spinel crystals grown by Verneuil and Czochralski methods

• Дата: 2005
• Автори: Belykh, G.I., Gritsyna, V.T., Lytvynov, L.A., Kol'ner, V.B.
• Формат: Стаття
• Мова: English
• Опубліковано: НТК «Інститут монокристалів» НАН України 2005
• Назва видання: Functional Materials
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/137655
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Structural and mechanical characteristics of magnesium-aluminate spinel crystals grown by Verneuil and Czochralski methods / G.I. Belykh, V.T. Gritsyna, L.A. Lytvynov, V.B. Kol'ner // Functional Materials. — 2005. — Т. 12, № 3. — С. 447-453. — Бібліогр.: 19 назв. — англ.

The investigations of X-ray diffraction in magnesium aluminate spinel crystals of stoichiometric and non-stoichiometric compositions grown by Verneuil method were provided. It was revealed the decrease of MgO content at periphery to compare with that of center of crystals. The block structure of these crystals was revealed and the origin of it is discussed. There were also investigated spinel crystals grown by Czochralski method as nominally pure and doped with Mn to concentrations of 0.02, 0.04, and 0.1 mass.%. The absence of variation of composition across of radius of crystals in Czochralski grown spinel crystals was observed. More high mechanical parameters were obtained for Czochralski grown crystals.