Magnetic material and production method therefor
AssigneesPanasonic Intellectual Property Management Co., Ltd., The Doshisha
InventorsKen Hirota, Masaki Kato, Junichi Kotani, Nobuya Matsutani
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Abstract
A production method for a magnetic material, which is expressed by a chemical structure formula Fe(Al1-xMnx)2O4, where 0<x<1, and exhibits ferromagnetism, includes: preparing a mixed aqueous solution by dissolving, in distilled water, Fe nitrate, Al nitrate, and an oxide including Mn, the Fe nitrate, the Al nitrate, and the oxide being parent materials; preparing a metal-citric acid complex by mixing citric acid and ethylene glycol with the mixed aqueous solution; obtaining a precursor by boiling the metal-citric acid complex to a gel and drying the gel; and obtaining the magnetic material by sintering the precursor.
Claims12
A magnetic material which is expressed by a chemical structure formula Fe(Al1-xMnx)2O4, where x is ≥0.2 and x is <1, and exhibits ferromagnetism.
A production method for a magnetic material,
- wherein the magnetic material is expressed by a chemical structure formula Fe(Al1-xMnx)2O4, where 0<x<1, and exhibits ferromagnetism,
- the production method comprising:
- preparing a mixed aqueous solution by dissolving, in distilled water, Fe nitrate, Al nitrate, and an oxide including Mn, the Fe nitrate, the Al nitrate, and the oxide being parent materials;
- preparing a metal-citric acid complex by mixing citric acid and ethylene glycol with the mixed aqueous solution;
- obtaining a precursor by boiling the metal-citric acid complex to a gel and drying the gel;
- and
- obtaining the magnetic material by sintering the precursor.
Dependencies are inferred from the claim text.