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Enhanced Temperature Stability of Coercivity in Sintered Permanent Magnet by Substitution of Ce for Didymium

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PROJECT TITLE :

Enhanced Temperature Stability of Coercivity in Sintered Permanent Magnet by Substitution of Ce for Didymium

ABSTRACT:

Effects of partial substitution of Ce for didymium (Pr–Nd alloy, abbreviated to Di) on elevated temperature magnetic properties in sintered (Di1–xCex)27.5Dy3Al0.1Cu0.1Febal.B (wt.%, ) magnets were investigated during this paper. Temperature stability of remanence was found to decrease in Ce substitution. However, the temperature stability of coercivity was largely improved when . Temperature dependence of magnetocrystalline anisotropy field ( was improved as Ce substitution. Microstructural observation and micromagnetic analysis indicated that a microstructure of magnets was modified when . The enhancement of temperature stability of coercivity was due to the advance of temperature dependence of and the modification of microstructure.


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Enhanced Temperature Stability of Coercivity in Sintered Permanent Magnet by Substitution of Ce for Didymium - 4.9 out of 5 based on 37 votes

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