Magnetic nanocomposites and methods of forming magnetic nanocomposites

Magnetic nanocomposites are disclosed with aligned, rod-shaped, rare-earth-free and Pt-free metal domains in a rigid, non-metallic matrix. In some variations, the invention provides a magnetic nanocomposite comprising metallic nanorods dispersed within a continuous and rigid non-metallic matrix. The...

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Bibliographische Detailangaben
Hauptverfasser:	Gross, Adam F, Vajo, John J, Ghantous, Eliana V, Nowak, Andrew P
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BASIC ELECTRIC ELEMENTS ELECTRICITY INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDUCTANCES MAGNETS MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES NANOTECHNOLOGY PERFORMING OPERATIONS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSFORMERS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Magnetic nanocomposites are disclosed with aligned, rod-shaped, rare-earth-free and Pt-free metal domains in a rigid, non-metallic matrix. In some variations, the invention provides a magnetic nanocomposite comprising metallic nanorods dispersed within a continuous and rigid non-metallic matrix. The nanorods have an average nanorod length-to-width ratio of at least 2. The nanorods are alignable and may be aligned in one axial direction with magnetic or mechanical forces. Some variations provide a method of forming a magnetic nanocomposite, comprising: dispersing metal oxide nanorods into a hardenable non-metallic material; thermally or chemically reducing the metal oxide nanorods to form magnetic metallic nanorods; aligning nanorods in one axial direction within the hardenable non-metallic material; and hardening the non-metallic material to form a continuous and rigid non-metallic matrix containing the metallic nanorods.