US5252148A
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Soft magnetic alloy, method for making, magnetic core, magnetic shield and compressed powder core using the same
Assignee: TDK Corp
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Filing: 1992-08-10
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Granted: 1993-10-12
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Expires: 2012-08-10
Abstract
Abstract A soft magnetic alloy having a composition of general formula: (Fe1-aNia)100-x-y-z-p-qCuxSiyBzCrpM1q(I) wherein M1 is V or Mn or a mixture of V and Mn, 0</=a</=0.5, 0.1</=x</=5, 6</=y</=20, 6</=z</=20, 15</=y+z</=30, 0.5</=p</=10, and 0.5</=q</=10 and possessing a fine crystalline phase is suitable as a core, especially a wound core and a compressed powder core.
Inventors
- 👤 Masao Shigeta
- 👤 Asako Kajita
- 👤 Ippo Hirai
- 👤 Tsutomu Choh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
H; H01; H01F; H01F3/00; C; C22; C22C; C22C45/00; C22C45/02; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/153; H01F1/15308; H01F1/15358; H01F1/15383
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
66 words
A soft magnetic alloy having a composition in atomic ratio of general formula: (Fe.sub.1-a Ni.sub.a).sub.100-x-y-z-p-q Cu.sub.x Si.sub.y B.sub.z Cr.sub.p M.sup.1.sub.q (I) wherein M 1 is V or Mn or a mixture of V and Mn, and letters a, x, y, z, p, and q are in the following ranges: 0≦a≦0.5, 0.1≦x≦5, 6≦y≦20, 6≦z≦20, 15≦y+z≦30, 0.5≦p≦10, and 0.5≦q≦10, said soft magnetic alloy having a fine crystalline phase.
Claim 2
Dependent Claim
66 words
A soft magnetic alloy having a composition in atomic ratio of general formula: (Fe.sub.1-a Ni.sub.a).sub.100-x-y-z-p-q Cu.sub.x Si.sub.y B.sub.z Cr.sub.p M.sup.1.sub.q (I) wherein M 1 is V or Mn or a mixture of V and Mn, and letters a, x, y, z, p, and q are in the following ranges: 0≦a≦0.5, 0.1≦x≦5, 6≦y≦20, 6≦z≦20, 15≦y+z≦30, 0.5≦p≦10, and 0.5≦q≦10, said soft magnetic alloy having a fine crystalline phase.
Claim 3
Dependent Claim
23 words
The soft magnetic alloy of claim 1 having a magnetostriction constant λs within the range of from -5×10 -6 to +5×10 -6 .
Claim 4
Dependent Claim
88 words
A soft magnetic alloy having a composition of general formula: (Fe.sub.1-a Ni.sub.a).sub.100-x-y-z-p-q-r Cu.sub.x Si.sub.y B.sub.z Cr.sub.p M.sup.1.sub.q M.sup.2.sub.r (II) wherein M 1 is V or Mn or a mixture of V and Mn, M 2 is at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, and W, and letters a, x, y, z, p, q, and r are in the following ranges: 0≦a≦0.5, 0.1≦x≦5, 6≦y≦20, ≦ z≦20, 15≦y+z≦30, 0.5≦p≦10, 0.5≦q≦10, and 0≦r≦10, said soft magnetic alloy having a fine crystalline phase.
Claim 5
Dependent Claim
88 words
A soft magnetic alloy having a composition of general formula: (Fe.sub.1-a Ni.sub.a).sub.100-x-y-z-p-q-r Cu.sub.x Si.sub.y B.sub.z Cr.sub.p M.sup.1.sub.q M.sup.2.sub.r (II) wherein M 1 is V or Mn or a mixture of V and Mn, M 2 is at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, and W, and letters a, x, y, z, p, q, and r are in the following ranges: 0≦a≦0.5, 0.1≦x≦5, 6≦y≦20, ≦ z≦20, 15≦y+z≦30, 0.5≦p≦10, 0.5≦q≦10, and 0≦r≦10, said soft magnetic alloy having a fine crystalline phase.
Claim 6
Dependent Claim
23 words
The soft magnetic alloy of claim 3 having a magnetostriction constant λs within the range of from -5×10 -6 to +5×10 -6 .
Claim 7
Dependent Claim
56 words
A soft magnetic alloy having a composition in atomic ratio of general formula: (Fe.sub.1-a Ni.sub.a).sub.100-x-y-z-p-q-r Cu.sub.x Si.sub.y B.sub.z Cr.sub.p V.sub.q Mn.sub.r (III) wherein letters a, x, y, z, p, q, and r are in the following ranges, 0≦a≦0.5, 0.1≦x≦5, 6≦y≦20, 6≦z≦20, 15≦y+z≦30, 0.5≦p≦10, 0.5≦q≦2.5, 0≦r, and 3≦p+q+r≦12.5 said soft magnetic alloy having a fine crystalline phase.
Claim 8
Dependent Claim
56 words
A soft magnetic alloy having a composition in atomic ratio of general formula: (Fe.sub.1-a Ni.sub.a).sub.100-x-y-z-p-q-r Cu.sub.x Si.sub.y B.sub.z Cr.sub.p V.sub.q Mn.sub.r (III) wherein letters a, x, y, z, p, q, and r are in the following ranges, 0≦a≦0.5, 0.1≦x≦5, 6≦y≦20, 6≦z≦20, 15≦y+z≦30, 0.5≦p≦10, 0.5≦q≦2.5, 0≦r, and 3≦p+q+r≦12.5 said soft magnetic alloy having a fine crystalline phase.
Claim 9
Dependent Claim
23 words
The soft magnetic alloy of claim 5 having a magnetostriction constant λs within the range of from -5×10 -6 to +5×10 -6 .
Claim 10
Dependent Claim
16 words
The soft magnetic alloy of claim 5 containing 0.1 to 95% of a fine crystalline phase.
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