Research and Development of Bulk Anisotropic Nanograin Composite Rare Earth Permanent Magnets
作者： Sam LIU , Don LEE , Mei-qing HUANG , Ashil Higgins , Yu-hui SHEN
DOI: 10.1016/S1006-706X(08)60170-3
关键词:
摘要: Abstract Innovative and cost-effective technology for synthesizing bulk anisotropic nanograin composite rare earth magnets has been developed. Using a powder blending technique, ( BH ) max of can reach 40 to 50 MGOe, while applying coating techniques, = 45–55 MGOe were achieved. Thus, principal technical difficulties in are successfully overcome. In addition, it was observed that the magnetically soft phase magnet could be up tens micrometers, or more than 1000 times larger upper size limit predicted by current models interface exchange coupling, which indicates further reducing improving its distribution will significantly improve magnetic performance magnets.
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