R-T-B BASED PERMANENT MAGNET MATERIAL, PREPARATION METHOD THEREFOR AND USE THEREOF

R-T-B BASED PERMANENT MAGNET MATERIAL, PREPARATION METHOD THEREFOR AND USE THEREOF

An R-T-B based permanent magnet material, a preparation method therefor and use thereof are provided. The R-T-B permanent magnet material forms M oxides at the grain boundary triple point, such that oxygen is enriched at the grain boundary triple point, thereby accurately controlling the oxygen cont...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: REN, Tao, LIU, Lei, YU, Yongjiang, LI, Meng, JIANG, Yunying
Format: Patent
Sprache:eng
Schlagworte:
ALLOYS
BASIC ELECTRIC ELEMENTS
CASTING
CHEMISTRY
ELECTRICITY
FERROUS OR NON-FERROUS ALLOYS
INDUCTANCES
MAGNETS
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:An R-T-B based permanent magnet material, a preparation method therefor and use thereof are provided. The R-T-B permanent magnet material forms M oxides at the grain boundary triple point, such that oxygen is enriched at the grain boundary triple point, thereby accurately controlling the oxygen content in the magnet. The permanent magnet material and the preparation method of the present disclosure can prepare products with strong corrosion resistance under the condition of unchanged magnetic properties, and improve the formability in the pressing process, thereby improving the qualified rate of the products.