Production method of ultrafine crystalline alloy ribbon
US-9224527-B2 · Dec 29, 2015 · US
Fe-based nano-crystalline alloy
US9850562B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9850562-B2 |
| Application number | US-201615054446-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 26, 2016 |
| Priority date | Aug 24, 2009 |
| Publication date | Dec 26, 2017 |
| Grant date | Dec 26, 2017 |
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Abstract
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An Fe-based nano-crystalline alloy formed from an alloy composition of (FeE) (100-X-Y-Z) B X P Y Cu Z having an amorphous phase as a main phase, wherein 79≦100-X-Y-Z≦86 atomic %, 4≦X≦9 atomic %, 1≦Y≦10 atomic %, and 0.5≦Z<1.2 atomic %, and wherein (FeE) includes Fe and at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, W, Cr, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, Y, N, O and a rare-earth element, wherein a combined total of said at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, W, Cr, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, Y, N, O and a rare-earth element is in an amount of 3 atomic % or less relative to the whole composition.
First claim
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What is claimed is: 1. An Fe-based nano-crystalline alloy formed from an alloy composition of (FeE) (100-X-Y-Z) B X P Y Cu Z having an amorphous phase as a main phase, wherein 79≦100-X-Y-Z≦86 atomic %, 4≦X≦9 atomic %, 1≦Y≦10 atomic %, and 0.5≦Z<1.2 atomic %, and wherein (FeE) comprises Fe and at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, W, Cr, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, Y, N, O and a rare-earth element, wherein a combined total of said at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, W, Cr, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, Y, N, O and said rare-earth element is in an amount of 3 atomic % or less relative to the whole composition, wherein the Fe-based nano-crystalline alloy has nanocrystals of an average diameter of 5 to 25 nm, and wherein the Fe-based nano-crystalline alloy has a coercivity of 20 A/m or less and a saturation magnetic flux density of 1.6 T or more. 2. The Fe-based nano-crystalline alloy according to claim 1 , wherein the alloy composition having a first crystallization start temperature (T x1 ) and a second crystallization start temperature (T x2 ) which have a difference (ΔT=T x2 −T x1 ) of 70 to 200° C. 3. The Fe-based nano-crystalline alloy according to claim 1 , wherein the Fe-based nanocrystalline alloy is formed by heating the alloy composition to a temperature in a range of T x1 −50° C. to T x2 −77° C.
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Classifications
Spherical particles · CPC title
- C22C45/02Primary
with iron as the major constituent · CPC title
based on Fe/Ni (H01F1/15325 takes precedence) · CPC title
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US9850562B2 cover?
- An Fe-based nano-crystalline alloy formed from an alloy composition of (FeE) (100-X-Y-Z) B X P Y Cu Z having an amorphous phase as a main phase, wherein 79≦100-X-Y-Z≦86 atomic %, 4≦X≦9 atomic %, 1≦Y≦10 atomic %, and 0.5≦Z<1.2 atomic %, and wherein (FeE) includes Fe and at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, W, Cr, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, Y, N…
- Who is the assignee on this patent?
- Tokin Corp, Tohoku Magnet Inst Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C22C45/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 26 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).