利用微波辅助溶胶-凝胶法合成了M型SrFe12O19纳米晶铁氧体.借助XRD、SEM和VSM等技术, 对合成纳米晶的物相、微观结构及其磁性能进行了研究.结果表明, 当煅烧温度为900 ℃以上时,M型SrFe12O19微粒保持为单一的六方磁铅石型结构;温度在1100 ℃时,得到平均晶粒100~150 nm的六角型锶铁氧体;温度为800 ℃时,其矫顽力达到最大为HC=399.78 kA/m,比饱和磁化强度为σs=57.97 A·m2·kg-1.
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