Co-계비정질 리본의 자기특성에 미치는 열처리 효과에 관한 연구 = A study on the Effect of Heat Treatment on the Mgnetic Properties of Co-based Amorphous Ribbons

다국어 초록 (Multilingual Abstract)

This thesis describes the effect of annealing on the magnetic properties of Co-bsaed amorphous.
The basic composition of the chosen samples were Co82Si2B15 of zero magnetostriction. The sample was melted in the quartz tube with 0.5[mm∮) nozzle. and the single roll technique was used to make a amorphous ribbon, under Ar-gas pressure 0.6〔kg/cm2] and ro11 speed 28[m/sec].
The average width and thickness of sample ribbons 2.4[mm] and 45(㎛). The sample ribbons were annealed to improve the magnetic properties at temperature of 325,350,375,400 and 450℃ respectively, for 15,30,45,60 and 120 [min] at each temperature. And I have measured high per meability of 8,000∼ 13,000 through the annealed amorphous ribbons.
Especially, when the amorhpous samples were annealed at 325 for 45min, the permeability of the ribbon was 13,589.
Consequently. I had effects of the improvment of permeability and the average loss at the low-frequency region.