R-T-B BASED PERMANENT MAGNET

An R-T-B based permanent magnet includes rare earth elements, transition metal elements, boron, and M. An amount of boron is within a range between 0.90 mass% or more and 1.00 mass% or less. An amount of carbon is within a range between 0 mass% or more and 0.10 mass% or less, an amount of oxygen is...

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Bibliographische Detailangaben
1. Verfasser:	Koda, Atsushi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INDUCTANCES MAGNETS METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	An R-T-B based permanent magnet includes rare earth elements, transition metal elements, boron, and M. An amount of boron is within a range between 0.90 mass% or more and 1.00 mass% or less. An amount of carbon is within a range between 0 mass% or more and 0.10 mass% or less, an amount of oxygen is within a range between 0 mass% or more and 0.15 mass% or less, an amount of nitrogen is within a range between 0 mass% or more and 0.15 mass% or less, an amount of M is within a range between 0.30 mass% or more and 1.50 mass% or less, an amount of the rare earth elements based on mass represented by TRE is within a range between 29.00 mass% or more and 31.00 mass% or less, and a value represented by Pr/TRE is within a range between 0.30 or larger and 0.50 or smaller.