用化学共沉淀法制备均匀、细小、高活性的Y型平面六角铁氧体前躯体粉体,将前躯体在600-1050℃煅烧后在1000℃烧结,并对烧结样品进行表征,研究了热处理对Ba2Co0.6Zn1.0Cu0.4Fe12O22(Co2Y)铁氧体性能的影响.结果表明,前躯体的颗粒粒度分布集中,粒径大小约为3 μm.在较低温度(900℃)煅烧的样品能形成纯相Y型平面六角铁氧体；其比饱和磁化强度随着煅烧温度的升高而增大,对应磁环的起始磁导率先降低后增大；在900℃煅烧的样品σs≈17.262 A·m2·kg-1、Hc≈5.146 kA·m-1,频率为100MHz,其μi≈3.7、Q≈13.4.
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