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Magnetic materials with ultrahigh resistivity intergrain nanoparticles
A composite magnetic material has a plurality of grains having a magnetic ferrite phase, grain boundaries surrounding the grains, and a plurality of nanoparticles disposed at the grain boundaries. The nanoparticles of the composite material are both magnetic and electrically insulating, having a magnetic flux density of greater than about 100 mT and an electrical resistivity of at least about 108 Ohm-cm. Also provided is a method of making the composite material. The material is useful for making inductor cores of electronic devices.
Magnetic materials with ultrahigh resistivity intergrain nanoparticles
A composite magnetic material has a plurality of grains having a magnetic ferrite phase, grain boundaries surrounding the grains, and a plurality of nanoparticles disposed at the grain boundaries. The nanoparticles of the composite material are both magnetic and electrically insulating, having a magnetic flux density of greater than about 100 mT and an electrical resistivity of at least about 108 Ohm-cm. Also provided is a method of making the composite material. The material is useful for making inductor cores of electronic devices.
Magnetic materials with ultrahigh resistivity intergrain nanoparticles
CHEN YAJIE (author) / ANDALIB PARISA (author) / HARRIS VINCENT (author)
2021-12-28
Patent
Electronic Resource
English
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