PVD Ti coating on Sm-Co magnets

• Дата: 2008
• Автори: Bovda, O.M., Bovda, V.O., Chen, C.H., Garkusha, I.E., Leonov, S.O., Onischenko, L.V., Tereshin, V.I., Tortika, O.S.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2008
• Назва видання: Вопросы атомной науки и техники
• Теми: Физика и технология конструкционных материалов
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/110895
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: PVD Ti coating on Sm-Co magnets / O.M. Bovda, V.O. Bovda, C.H. Chen, I.E. Garkusha, S.O. Leonov, L.V. Onischenko, V.I. Tereshin, O.S. Tortika // Вопросы атомной науки и техники. — 2008. — № 1. — С. 189-191. — Бібліогр.: 8 назв. — англ.

The combination of conventional ion-plasma deposition (PVD) and pulsed plasma technologies (PPT) has been applied for rare-earth Sm-Co based magnets, to provide them with enhanced corrosion resistance. The influence of pulsed plasma treatment on Sm-Co magnets with deposited titanium PVD coatings has been investigated. It was revealed that thickness of modified layer significantly depends on the thickness of initial titanium film and plasma treatment regimes. As a result of plasma treatment with energy density of 30 J/cm² and pulse duration of ~ 5 μs fine-grained layer with the thickness of 70 microns has been formed on the Sm-Co magnet with pure titanium film of 50 micron. According to SEM analyses considerable diffusion of titanium to the bulk of the magnet, on the depth of 20 microns, took place. Such reaction enhances strong bonding between the coating and the magnet.