Ferromagnetic amorphous alloy
AssigneesHitachi, Ltd., Hitachi Metals, Ltd., Hitachi Research Dev. Corp.
InventorsShinji Takayama, Yasuo Tsukuda, Kazuo Shiiki, Shigekazu Otomo, Mitsuhiro Kudo, Yasunobu Ogata, Yoshizo Sawada
Life of this patent
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Abstract
A ferromagnetic amorphous alloy having a composition represented by (Co.sub.x Ni.sub.y Fe.sub.z).sub.a M.sub.b G.sub.c, wherein M is Cr, Mo and/or W, G is Zr, Hf and/or Ti and x, y, z and a, b, c are selected to meet the conditions of x=1-y-z, 0.ltoreq.y.ltoreq.0.2, 0.ltoreq.z.ltoreq.0.7, a=1-b-c, 0.ltoreq.b.ltoreq.0.05 and 0.05.ltoreq.c.ltoreq.0.2 This amorphous alloy has a superior magnetic characteristic and a high thermal stability.
Claims11
A ferromagnetic amorphous alloy having a composition expressed by (Co.sub.x Ni.sub.y Fe.sub.z).sub.a M.sub.b G.sub.c, wherein M is at least one transition metal element selected from the group consisting of Cr, Mo and W, G is at least one element selected from the group consisting of Zr, Hf and Ti and wherein x, y, z and a, b, c are selected to meet the conditions of:
- x=1-y-z, 0.ltoreq.y.ltoreq.0.2, 0.ltoreq.z.ltoreq.0.7, a=1-b-c, 0.ltoreq.b.ltoreq.0.05 and 0.05.ltoreq.c.ltoreq.0.2.
Dependencies are inferred from the claim text.