Magnetic properties of (misch metal, Nd)-Fe-B melt-spun magnets
Source abstract
Abstract
The effect of replacing Nd with misch metal (MM) on magnetic properties and thermal stability has been investigated on melt-spun (Nd1-xMMx)13.5Fe79.5B7 ribbons by varying x from 0 to 1. All of the alloys studied crystallize in the tetragonal 2:14:1 structure with single hard magnetic phase. Curie temperature (Tc), coercivity (Hcj), remanence magnetization (Br) and maximum energy product ((BH)max) all decrease with MM content. The melt-spun MM13.5Fe79.5B ribbons with high ratio of La and Ce exhibit high magnetic properties of Hcj = 8.2 kOe and (BH)max= 10.3 MGOe at room temperature. MM substitution also significantly strengthens the temperature stability of coercivity. The coercivities of the samples with x = 0.2 and even 0.4 exhibit large values close to that of Nd13.5Fe79.5B7 ribbons above 400 K.
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Research context
OpenAlex topics: Magnetic Properties of Alloys · Magnetic Properties and Applications · Magnetic properties of thin films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Physics, Chinese Academy of Sciences 1 State Key Laboratory of Magnetism, , Beijing 100190, People’s Republic of China
University of Chinese Academy of Sciences 2 , Beijing 100049, People’s Republic of China
Funding
Knowledge Innovation Project of the Chinese Academy of Sciences · National Key Research Program of China · National Natural Science Foundation of China
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