Abstract
Fe-based amorphous powders with high magnetic flux density were fabricated in an extremely high cooling rate of over 10 6 K/s by spinning water atomization process (SWAP). The composition of the alloys studied were Fe 79(Si 0.5B 0.5) 19C 2 and Fe x(Si 0.3B 0.7) 98-xC 2 (x = 79,80,81,83,84). The saturation flux density Bs increased with increasing iron content. For Fe 83(Si 0.3B 0.7) 15C 2, the Bs value was 1.64 T, which is 31% higher than that of our previously developed (Fe 0.97Cr 0.03) 76(Si 0.5B 0.5) 22C 2 alloy. Furthermore, consolidated cores of amorphous powders were also fabricated by compact-pressing techniques.
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