Back to results
US 2015/0147217 A1Published application
Nanocomposite permanent magnets and method of making
AssigneeGeneral Electric Company
InventorsFrancis Johnson, Wanming Zhang, Min Zou, Christina Hongbing Chen
Life of this patent
Estimating the term…
Abstract
An article having a nanocomposite magnetic component and method of forming a nanocomposite magnetic component are disclosed. The article includes a plurality of nanocrystalline flake particles bonded along their prior particle boundaries. The nanocrystalline flake particles have a median grain size less than about 30 nanometers and include a first set of grains comprising predominantly permanent magnet phase and a second set of grains comprising predominantly soft magnet phase.
Claims18
An article, comprising:
- a nanocomposite magnetic component comprising a plurality of nanocrystalline flake particles bonded along their prior particle boundaries, wherein the nanocrystalline flake particles have a median grain size less than about 30 nanometers, and wherein the particles comprise a first set of grains comprising predominantly permanent magnet phase and a second set of grains comprising predominantly soft magnet phase.
An article, comprising:
- a nanocomposite magnetic component comprising a plurality of nanocrystalline flake particles bonded along their prior particle boundaries, and comprising a first set of grains comprising predominantly permanent magnet phase and a second set of grains comprising predominantly soft magnet phase, wherein
- a median particle size of the nanocrystalline flakes is in a range from about 0.3 microns to about 5 microns;
- an aspect ratio of the nanocrystalline flakes is in a range from about 5:1 to about 15:1;
- and
- a median grain size of the first set of grains and median grain size of the second set of grains are less than about 10 nanometers.
2 more elements
A method, comprising:
- forming a nanocomposite magnetic component comprising a plurality of nanocrystalline flake particles bonded along their prior particle boundaries, wherein the nanocrystalline flake particles have a median grain size less than about 30 nanometers, and comprise a first set of grains comprising predominantly permanent magnet phase and a second set of grains comprising predominantly soft magnet phase.
Dependencies are inferred from the claim text.