采用陶瓷法成功地制备了磁铅石结构新钙系铁氧体,利用X射线衍射分析仪(XRD),扫描电镜(SEM),振动样品磁强计(VSM)和B-H分析仪,对产物的晶型、结构、微观形貌和磁性能进行研究.结果表明,Ca2+-La3+-Co2+联合取代可以显著提高磁铅石结构铁氧体的磁性能.与镧钴锶铁氧体相比,剩磁、磁感应矫顽力、内禀矫顽力和最大磁能积均有明显的提高.这种烧结磁体变小、变薄后,仍能保持高的剩余磁通密度.
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