Production of textured ribbons based on Ni–W paramagnetic alloys

• Дата: 2013
• Автори: Finkel, V.A., Derevyanko, V.V., Sungurov, M.S., Sukhareva, T.V., Shakhov, Yu.N.
• Формат: Стаття
• Мова: English
• Опубліковано: НТК «Інститут монокристалів» НАН України 2013
• Назва видання: Functional Materials
• Теми: Technology
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/119906
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Production of textured ribbons based on Ni–W paramagnetic alloys / V.A. Finkel, V.V. Derevyanko, M.S. Sungurov, T.V. Sukhareva, Yu.N. Shakhov // Functional Materials. — 2013. — Т. 20, № 1. — С. 103-110. — Бібліогр.: 20 назв. — англ.

The objective of the work is searching for ways to produce substrates for second generation HTSC-covered conductors based on high tungsten content Ni–W paramagnetic alloys having a cubic texture of {001}< 100> type. The work is based on the following hypothesis: increasing the stacking fault energy Esf, and, as a consequence, cubic structure formation is possible due to rather strong compressive stress in the ribbon. On the conceptions developed, two new ways for production of a cubic texture in the ribbon were realized: (i) TiN thin layer plasma deposition, and (ii) Ni–W alloy rolling under conditions providing dislocation high density ("extreme rolling"). Optimal schemes for mechanical and thermal treatment of paramagnetic Ni–9.5 at. % W alloy based ribbons were developed including choice of synthesis method, rolling regimes parameters, ribbon thickness, annealing temperature and time, etc.