RARE EARTH MAGNETS

To provide a rare earth magnet with suppressed high temperature demagnetization rate that can be used even in a high temperature environment.SOLUTION: There is provided a rare earth magnet whose main phase is crystal grains with an RTB-type crystal structure. 0.05 atom% or more of C is detected in t...

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Bibliographic Details
Main Authors GOTO SHOTA, FUJIKAWA YOSHINORI, OKAWA WAKAKO
Format Patent
LanguageEnglish
Japanese
Published 13.08.2020
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Summary:To provide a rare earth magnet with suppressed high temperature demagnetization rate that can be used even in a high temperature environment.SOLUTION: There is provided a rare earth magnet whose main phase is crystal grains with an RTB-type crystal structure. 0.05 atom% or more of C is detected in the main phase particles over 100 nm or more.SELECTED DRAWING: Figure 2 【課題】高温環境下においても使用可能な高温減磁率を抑制した希土類磁石を提供すること。【解決手段】Ｒ２Ｔ１４Ｂ型結晶構造を有する結晶粒子を主相とする希土類磁石である。主相粒子内に０．０５原子％以上のＣが１００ｎｍ以上にわたって検出される。【選択図】図２
Bibliography:Application Number: JP20200069326