| Title |
Effects of Field - annealing on the Magnetic Properties of Amorphous Fe80 - xCoxSi6B14 Alloys |
| Authors |
김기환(Kee Hwan Kim); 조용수(Yong Soo Cho); 김택기(Taik Kee Kim) |
| Abstract |
Amorphous Fe_(80-x)Co_xSi_6B_(14)(10≤X≤70) alloys were annealed below their Curie temperatures in AC magnetic field in order to improve soft magnetic properties. Magnetization measurements were made as a function of applied AC magnetic field and annealing temperature and time. Magnetic measurement results clearly demonstrated that some beneficial effects can be provided by applying AC field during annealing, in improvement of the soft magnetic properties : a significant decrease both in coercive and in AC Power loss, and a tendency toward a square shape of hysteresis loop were observed in the our present study. The optimum experimental condition to obtain best magnetic properties for the amorphous Fe_(80-x)Co_xSi_6B_(14) alloys was determined to be AC field annealing treatment at 380℃ for 30 min with H_a≥30 Oe. |