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US 12,146,210 B2Granted
FeNi ordered alloy, method for manufacturing FeNi ordered alloy, and magnetic material including FeNi ordered alloy
AssigneeDenso Corporation
InventorsRyota Shinozaki, Hiroaki Kura
Life of this patent
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Abstract
A FeNi ordered alloy includes a plurality of particles having a L10 type ordered structure. A size of the particles is in a range between 200 nm and 500 nm. A volume fraction of a pore in the particles with respect to a volume of the particles having an unit of vol. % is 5% or less.
Claims7
A FeNi ordered alloy powder comprising:
- a plurality of particles having an L10 type ordered structure, wherein:
- a size of the particles is in a range between 200 nm and 500 nm,
- a volume fraction of a pore in the particles with respect to a volume of the particles having an unit of vol. % is 5% or less, and
- the particles are in an isolated state in which adjacent particles are isolated from each other by not being attracted or integrated to each other, by being physically independent from each other, and by being separable from each other.
1 more element
A FeNi ordered alloy powder comprising a plurality of particles having:
- a L10 type ordered structure,
- a particle size in a range between 200 nm and 500 nm, and
- a volume fraction of a pore in the particles with respect to a volume of the particles having an unit of vol. % is 5% or less,
- wherein the FeNi ordered alloy is made by a method comprising:
- densifying the plurality of particles made of an FeNi disordered alloy by a heat treatment,
- nitriding the densified particles made of the FeNi disordered alloy, and
- denitriding the nitrided particles made of the FeNi disordered alloy to obtain the plurality of particles having the L10 type ordered structure, and
- wherein the particles are in an isolated state in which adjacent particles are isolated from each other by not being attracted or integrated to each other, by being physically independent from each other, and by being separable from each other.
5 more elements
A FeNi ordered alloy powder comprising:
- a plurality of particles having an L10 type ordered structure obtained by nitriding and denitriding heat-treated particles made of an anti-sintering FeNi disordered alloy, wherein:
- a size of the particles is in a range between 200 nm and 500 nm;
- and
- a volume fraction of a pore in the particles with respect to a volume of the particles having an unit of vol. % is 5% or less, and
- the particles are in an isolated state in which adjacent particles are isolated from each other by not being attracted or integrated to each other, by being physically independent from each other, and by being separable from each other.
2 more elements
Dependencies are inferred from the claim text.