Properties of Fe-Zr-N Thin Films
Gases emerging from Fe-Zr-N films with various compositions during heating were analyzed by thermal desorption spectroscopy. The structures and magnetic properties of films were also investigated. H2, N2 and Ar were detected at 300-400°C, 500°C and 650°C, respectively. Larger amounts of N2 were emitted by films which contained larger amounts of N2. The changes in composition of films due to the emerging N2 is as follows. The composition changed for N/Zr ratios ranging from N/Zr≫1 to N/Zr~1, but was unchanged when N/Zr1. A (100) preferred orientation occurred in films in which the composition was N~Zr≫8 at% in the as-deposited state, while either a (100) orientation or random orientation occurred in all other cases. Under the former conditions, Fe-Zr-N films showed excellent soft magnetic properties and thermal stability up to 700°C.
Fe-N スパッタ薄膜における Zr,Ti 添加の効果
The effects of addition of Zr and Ti on iron films containing nitrogen were investigated. The structures and magnetic properties were studied as a function of the contents of Zr and Ti. The coercive force of Fe-N films increased sharply after being annealed at about 350°C, while Fe-Zr-N and Fe-Ti-N films showed small coercive force after annealed at higher temperature. The addition of Zr and Ti in small amounts was highly effective in improving the thermal stability of Fe-N because it prevented the grain growth of iron.
SR topography of plastically deformed Fe-Si bicrystals - observation in situ and post mortem
SR reflection topography was applied to study the interaction of slip dislocations with the grain boundaries in Fe-4at%Si bicrystals deformed by compression. Three experimental settings with either a white or monochromatic beam were used and the corresponding orientation contrast analysed. Dislocation transmission through the grain boundary was observed in bicrystals with favourable geometry of the slip systems.