Fe-base soft magnetic alloy and method of producing same
First Claim
1. An Fe-base soft magnetic alloy having the composition represented by the general formula:
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space="preserve" listing-type="equation">(Fe.sub.1-a M.sub.a).sub.100-x-y-z-α
Cu.sub.x Si.sub.y B.sub.z M'"'"'.sub.α
wherein M is Co and/or Ni, M'"'"' is at least one element selected from the group consisting of Nb, W, Ta, Zr, Hf, Ti, and Mo, and a, x, y, z, and α
respectively satisfy 0≦
a≦
0.5, 0.1≦
x≦
3, 0≦
y≦
30, 0.1≦
z≦
25, 5≦
y+z≦
30 and 0.1α
≦
30, at least 50% of the alloy structure being occupied by fine crystalline particles having an average particle size of 1000 Å
or less.
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Accused Products
Abstract
An Fe-base soft magnetic alloy having the composition represented by the general formula:
(Fe.sub.1-a M.sub.a).sub.100-x-y-z-α-β-γ Cu.sub.x Si.sub.y
Bz M'"'"'60 M".sub.β X.sub.γ
wherein M is Co and/or Ni, M'"'"' is at least one element selected from the group consisting of Nb, W, Ta, Zr, Hf, Ti and Mo, M" is at least one element selected from the group consisting of V, Cr, Mn, Al, elements in the platinum group, Sc, Y, rare earth elements, Au, Zn, Sn and Re, X is at least one element selected from the group consisting of C, Ge, P, Ga, Sb, In, Be and As, and a, x, y, z, α, β and γ respectively satisfy 0≦a≦0.5, 0.1≦x≦3, 0≦y≦30, 0≦z≦25, 5≦y+z≦30, 0.1≦α≦30, β≦10 and γ≦10, at least 50% of the alloy structure being fine crystalline particles having an average particle size of 1000 Å or less. This alloy has low core loss, time variation of core loss, high permeability and low magnetostriction.
93 Citations
27 Claims
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1. An Fe-base soft magnetic alloy having the composition represented by the general formula:
-
space="preserve" listing-type="equation">(Fe.sub.1-a M.sub.a).sub.100-x-y-z-α
Cu.sub.x Si.sub.y B.sub.z M'"'"'.sub.αwherein M is Co and/or Ni, M'"'"' is at least one element selected from the group consisting of Nb, W, Ta, Zr, Hf, Ti, and Mo, and a, x, y, z, and α
respectively satisfy 0≦
a≦
0.5, 0.1≦
x≦
3, 0≦
y≦
30, 0.1≦
z≦
25, 5≦
y+z≦
30 and 0.1α
≦
30, at least 50% of the alloy structure being occupied by fine crystalline particles having an average particle size of 1000 Å
or less. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
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16. An Fe-base soft magnetic alloy having the composition represented by the general formula:
-
space="preserve" listing-type="equation">(Fe.sub.1-a M.sub.a).sub.100-x-y-z-α
-β
-γ
Cu.sub.x Si.sub.y B.sub.z M'"'"'.sub.α
M".sub.β
X.sub.γwherein M is Co and/or Ni, M'"'"' is at least one element selected from the group consisting of Nb, W, Ta, Zr, Hf, Ti and Mo, M" is at least one element selected from the group consisting of V, Cr, Mn, Al, elements in the platinum group, Sc, Y, rare earth elements, Au, Zn, Sn and Re, X is at least one element selected from the group consisting of C, Ge, P, Ga, Sb, In, Be and As and a x, y, z, α
, β and
γ
respectively satisfy 0≦
a≦
0.5, 0.1≦
x≦
3, 0≦
z≦
25, 5≦
y+z≦
30, 0.1≦
α
30, β
≦
10 and γ
≦
10, at least 50% of the alloy structure being fine crystalline particles having an average particle size of 1000 Å
or less. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification
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- Resources
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Current AssigneeHitachi Metals (Thailand) Ltd.
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Original AssigneeHitachi Metals (Thailand) Ltd.
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InventorsYoshizawa, Yoshihito, Yamauchi, Kiyotaka, Oguma, Shigeru
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Primary Examiner(s)Rutledge, L. Dewayne
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Assistant Examiner(s)WYSZOMIERSKI, GEORGE P
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Application NumberUS07/103,250Time in Patent Office782 DaysField of Search148/301, 148/302, 148/303, 148/305, 148/306, 148/307, 148/308, 148/310, 148/311, 420/83, 420/89US Class Current148/302CPC Class CodesC21D 1/04 with simultaneous applicati...C22C 45/02 with iron as the major cons...H01F 1/15308 based on Fe/Ni H01F1/15325 ...
