Continuous ulta-rapid annealing of nanocrystalline soft magnetic materials
AssigneeKite Magnetics
InventorRichard PARSONS
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Abstract
A Continuous Ultra-Rapid Annealing (CURA) method for producing a nanocrystalline alloy is provided. The method includes placing amorphous ribbons on a first reel, preheating a Cu wheel to a temperature of about 750° K to about 800° K, and unwinding the amorphous ribbons from the first reel to a second reel. The methods include directly contacting the amorphous ribbons between the first reel and the second reel with the Cu wheel for a length of time and under tension to produce the nanocrystalline alloy. The methods include winding the nanocrystalline alloy on the second reel.
Claims29
A Continuous Ultra-Rapid Annealing (CURA) method for producing a nanocrystalline alloy, the method comprising:
- placing amorphous ribbons on a first reel;
- preheating a Cu wheel to a temperature of about 750° K to about 800° K;
- unwinding the amorphous ribbons from the first reel to a second reel;
- directly contacting the amorphous ribbons between the first reel and the second reel with the Cu wheel for a length of time and under tension to produce the nanocrystalline alloy;
- and
- winding the nanocrystalline alloy on the second reel.
A nanocrystalline (Fe0.8Co0.2)86B14 alloy produced by a CURA process, the CURA process comprising directly contacting amorphous ribbons between a first reel and a second reel with a preheated Cu wheel for a length of time under tension to produce the nanocrystalline (Fe0.8Co0.2)86B14 alloy.
A Continuous Ultra-Rapid Annealing (CURA) method for producing a nanocrystalline alloy, the method comprising directly contacting amorphous ribbons between a first reel and a second reel with a preheated Cu wheel for a length of time under tension to produce the nanocrystalline alloy.
A nanocrystalline (Fe0.8Co0.2)86B14 alloy with a saturation magnetic polarization greater than 2 T and a coercivity less than 10 A/m.
An electric motor comprising a stator, wherein nanocrystalline (Fe0.8Co0.2)86B14 alloy is used to prepare the stator.
Dependencies are inferred from the claim text.