FE-base soft magnetic alloy and laminated magnetic core by using the same

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United States of America Patent

PATENT NO 5935347
SERIAL NO

08770369

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Abstract

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The present invention provides an Fe-base soft magnetic alloy and a laminated magnetic core formed by using the alloy which contains Fe as a main component and at least one element M and B selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Mo and W, in which at least 50% of the crystalline structure comprises fine crystalline grains having an average crystal grain size of 30 nm or less and a body-centered cubic structure, and the fracture strain at 300.degree. C. or less is 1. The ratios of the components Fe, and elements M and B are 75 to 93 atomic %, 4 to 9 atomic % and 0.5 to 18 atomic %, respectively. The alloy may contain other additive elements such as Cr, Ru, Hr, Ir, Si, Al, Ge, Ga and the like.

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Patent Owner(s)

  • ALPS ELECTRIC CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hangai, Katsuaki Nagaoka, JP 2 29
Inoue, Akihisa Sendai, JP 197 2923
Makino, Akihiro Nagaoka, JP 83 852
Masumoto, Tsuyoshi Sendai, JP 105 1707
Suzuki, Kiyonori Nagaoka, JP 10 76
Yoshida, Shoji Nakanoshima-machi, JP 66 1055

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