Soft magnetic alloy powder, dust core, and magnetic component
US-11145448-B2 · Oct 12, 2021 · US
Soft magnetic alloy and magnetic device
US11972884B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11972884-B2 |
| Application number | US-201916244633-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 10, 2019 |
| Priority date | Jan 12, 2018 |
| Publication date | Apr 30, 2024 |
| Grant date | Apr 30, 2024 |
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- Title
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Abstract
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A soft magnetic alloy includes a main component of (Fe(1−(α+β))X1αX2β)(1−(a+b+c+d+e))MaBbPcSidCe. X1 is one or more of Co and Ni. X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements. M is one or more of Nb, Hf, Zr, Ta, Mo, W, and V. 0.020≤a≤0.14 is satisfied. 0.020<b≤0.20 is satisfied. 0≤d≤0.060 is satisfied. α≥0 is satisfied. β≥0 is satisfied. 0≤α+β≤0.50 is satisfied. c and e are within a predetermined range. The soft magnetic alloy has a nanohetero structure or a structure of Fe based nanocrystallines.
First claim
Opening claim text (preview).
What is claimed is: 1. A soft magnetic alloy comprising a main component of (Fe (1−(α+β)) X1 α X2 β ) (1−(a+b+c+d+e)) M a B b P c Si d C e , by atomic fraction, in which X1 is one or more of Co and Ni, X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cr, Bi, N, O, and rare earth elements, M is Nb, 0.050≤a≤0.140 is satisfied, 0.020<b≤0.20 is satisfied, 0.020≤c≤0.030 is satisfied, 0≤d≤0.060 is satisfied, 0.0006≤e≤0.0045 is satisfied, α≥0 is satisfied, β≥0 is satisfied, and 0≤α+β≤0.50 is satisfied, wherein the soft magnetic alloy has a structure of Fe based nanocrystallines. 2. A soft magnetic alloy according to claim 1 , wherein the Fe based nanocrystallines have an average grain size of 5 to 30 nm. 3. A magnetic device comprising the soft magnetic alloy according to claim 1 .
Assignees
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Classifications
- H01F1/15325Primary
containing rare earths · CPC title
pressed, sintered or bonded together · CPC title
- H01F1/15308Primary
based on Fe/Ni (H01F1/15325 takes precedence) · CPC title
containing nanocrystallites, e.g. obtained by annealing · CPC title
from amorphous ribbons · CPC title
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- What does patent US11972884B2 cover?
- A soft magnetic alloy includes a main component of (Fe(1−(α+β))X1αX2β)(1−(a+b+c+d+e))MaBbPcSidCe. X1 is one or more of Co and Ni. X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements. M is one or more of Nb, Hf, Zr, Ta, Mo, W, and V. 0.020≤a≤0.14 is satisfied. 0.020<b≤0.20 is satisfied. 0≤d≤0.060 is satisfied. α≥0 is satisfied. β≥0 is satisfied. 0≤α+β≤0.50 …
- Who is the assignee on this patent?
- Tdk Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F1/15325. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 30 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).