http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Fe76-xCu₁MoxSi₁₄B9(x=2, 3) 초미세 결정합금의 자기적 특성
피우갑(W.K.Pi),노태환(T.H.Noh),김희중(H.J.Kim),강일구(I.K.Kang) 한국자기학회 1991 韓國磁氣學會誌 Vol.1 No.1
The effect of annealing on the magnetic properties and the microstructures of the amorphous Fe_(76-x)Cu₁Mo_xSi₁₄B_9(x=2, 3) alloye were investigated. When annealed at 500℃ for 1hr, 8~9×10³ of the effective permeability and 3~4 A/m of the coercive force were achieved upon crystallization to α-Fe phase. And the average diameter of the α-Fe grains was about 20 ㎚. For the nanocrystalline ferromagnets, the fine grain size is the important requirement to obtain a good soft magnetic property. In this work, in order to get the finer grain size of α-Fe phase, two-step annealing treatment was given. That is, following the low-temperature annealing at 400℃ for 1~3hr, the high-temperature annealing at 500℃ for 1hr was carried out. As the low-temperature annealing time increased, the effective permeability increased to 1.2~1.7×10⁴ and the coercive force decreased to about 2 A/m. And the grain size was observed to be smaller than 10㎚. The increased permeability and the decreased coercive force were attributed to the reduced average crystalline anisotropy by the refinement of α-Fe(Si) grains.