研究AlN纳米粉的晶界添加对烧结钕铁硼磁体显微结构、耐腐蚀性能及磁性能的影响.结果表明,AlN纳米粉的晶界添加可以有效提高磁体的耐腐蚀性能,当添加量为0.1%(质量分数)时,耐腐蚀性能最佳.同时,其添加也可以提高磁体的矫顽力.显微组织观察表明,纳米AlN的晶界添加有效细化了磁体主相的晶粒,这是耐腐蚀性能和矫顽力同时提高的主要原因.
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