FE-BASED SOFT MAGNETIC ALLOY AND METHOD FOR MANUFACTURING THE SAME
First Claim
1. An iron (Fe)-based soft magnetic alloy, comprising:
- carbon (C) and sulfur (S) meeting 1≥
a+b≥
6, wherein a is an atomic % content of C and b is an atomic % content of S;
boron (B) meeting 4.5≥
x≥
13.0, wherein x is an atomic % content of B;
copper (Cu) meeting 0.2≥
y≥
1.5, wherein y is an atomic % content of Cu;
aluminum (Al) meeting 0.5≥
z≥
2, wherein z is an atomic % content of Al; and
a remaining atomic % content of Fe and other inevitable impurities, whereinthe Fe-based soft magnetic alloy includes a micro-structure, and wherein the micro-structure includes a crystalline phase with an average grain size ranging from 15 nm to 50 nm in an amorphous base.
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Abstract
The present disclosure relates to an iron (Fe)-based amorphous soft magnetic alloy and a method for manufacturing the soft magnetic alloy. According to the present disclosure, there is provided an Fe-based soft magnetic alloy including C and S meeting 1≥a+b≥6, wherein a is an atomic % content of C and b is an atomic % content of S, B meeting 4.5≥x≥13.0, wherein x is an atomic % content of B, Cu meeting 0.2≥y≥1.5, wherein y is an atomic % content of Cu, Al meeting 0.5≥z≥2, wherein z is an atomic % content of Al, and a remaining atomic % content of Fe and other inevitable impurities, wherein the Fe-based soft magnetic alloy includes a micro-structure, and wherein the micro-structure includes a crystalline phase with a mean crystalline grain size ranging from 15 nm to 50 nm in an amorphous base.
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Citations
20 Claims
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1. An iron (Fe)-based soft magnetic alloy, comprising:
-
carbon (C) and sulfur (S) meeting 1≥
a+b≥
6, wherein a is an atomic % content of C and b is an atomic % content of S;boron (B) meeting 4.5≥
x≥
13.0, wherein x is an atomic % content of B;copper (Cu) meeting 0.2≥
y≥
1.5, wherein y is an atomic % content of Cu;aluminum (Al) meeting 0.5≥
z≥
2, wherein z is an atomic % content of Al; anda remaining atomic % content of Fe and other inevitable impurities, wherein the Fe-based soft magnetic alloy includes a micro-structure, and wherein the micro-structure includes a crystalline phase with an average grain size ranging from 15 nm to 50 nm in an amorphous base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for manufacturing an Fe-based soft magnetic alloy, the method comprising:
- melting an Fe-based mother alloy including C and S meeting 1≥
a+b≥
6, wherein a is an atomic % content of C and b is an atomic % content of S, B meeting 4.5≥
x≥
13.0, wherein x is an atomic % content of B, Cu meeting 0.2≥
y≥
1.5, wherein y is an atomic % content of Cu, Al meeting 0.5≥
z≥
2, wherein z is an atomic % content of Al, and a remaining atomic % content of Fe and other inevitable impurities;forming an amorphous micro-structure by quenching the melted mother alloy; and forming a crystalline phase by performing thermal treatment on the amorphous micro-structure. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
- melting an Fe-based mother alloy including C and S meeting 1≥
Specification