The Improvement of Magnetic Coercivity of Metallic Glass Fe_{81}Si_{3.5}B_{13.5}C_2 With Pulse Annealing in Air

Authors: Recep ŞAHİNGÖZ, Mike Richard GIBBS, Jr. Kemal ÇOLAKOĞLU

Abstract: Metallic Glass Fe_{81}Si_{3.5}B_{13.5}C_2 was annealed by furnace, low current and pulse annealing methods. Coercivity H_c measurements were taken for all techniques and their results compared. Advantages and limitations of the methods are discussed. Pulse annealing method, which gives very short annealing time and lowest Coercivity H_c value is described in detail. Electrical resistivity of Fe_{81}Si_{3.5}B_{13.5}C_2 was taken by four probe method in order to determine the Curie temperature T_c, and Crystallization temperature T_x.

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