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发明公开
CN106187144A 一种高性能低温烧结六角晶M型锶铁氧体及其制备方法 无效 - 驳回

一种高性能低温烧结六角晶M型锶铁氧体及其制备方法
摘要：
本发明公开了一种高性能低温烧结六角晶M型锶铁氧体及其制备方法，以SrFe12O19铁氧体为基础，使用缺铁、La3+取代Sr2+、Ni2+取代Fe3+；将SrCO3、Fe2O3、La2O3、Ni2O3粉末原料按Sr1-xLaxFe2n-yNiyO19，x＝0～0.3,y＝0～0.3,n＝5.5～5.9化学式进行配料，添加的Bi2O3和V2O5作为烧结助剂；采用热压烧结与Bi2O3、V2O5烧结助剂相结合的方式。本发明的制备工艺简单，过程无污染，所得材料同时获得了较高的烧结密度、饱和磁化强度、内禀矫顽力和直流电阻率，对解决当前LTCC环行器缺乏关键基片材料的突出问题具有较大意义和价值。
摘要（英）：

The invention discloses high performance low temperature sintered hexagonal M-type strontium ferrite and a preparation method thereof. According to the preparation method, based on SrFe12O19 ferrite, deficient iron and La<3+> replace Sr<2+>, Ni<2+> replaces Fe<3+>, SrCO3, Fe2O3, La2O3 and Ni2O3 powdery raw materials are blended according to a chemical formula of Sr1-xLaxFe2n-yNiyO19, x represents 0-0.3, y represents 0-0.3, n represents 5.5-5.9, Bi2O3 and V2O5 are used as sintering aids and a hot pressing sintering process and sintering aids such as Bi2O3 and V2O5 are combined. The preparation method has simple processes and does not produce pollution in the process. The produced strontium ferrite has high sintering density, saturation magnetization, intrinsic coercivity and DC resistivity and has a great meaning and value of solving the prominent problem of deficiency of a key substrate material in the existing LTCC circulator.

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