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Sc-doped hexagonal crystal system Zn2W ferrite material and preparation method thereof
The invention provides an Sc-doped Zn2W ferrite material and a preparation method thereof. The chemical formula of the material is BaZn2Fe16-xScxO27, x is equal to 0, 0.1, 0.2, 0.3 or 0.4, and the preparation method comprises the following steps: (1) selecting BaCO3, ZnO, Sc2O3 and Fe2O3 as raw materials, (2) adding deionized water into the raw materials for primary ball milling, and (3) drying and pre-sintering slurry after primary ball milling; (4) adding the pre-sintered material and a dispersing agent into absolute ethyl alcohol, and carrying out secondary ball milling; (5) molding and pressing the ball-milled slurry into a column shape through a wet-pressing magnetic field; and (6) calcining the formed column in an air furnace to obtain the Sc doped Zn2W material; the method belongs to a solid phase method, the method is reliable, the preparation process is simple, the cost is low, the repeatability is realized, the Sc-doped Zn2W ferrite has the characteristics of moderate coercive force, controllable magnetocrystalline anisotropy field, high residual magnetism rectangular ratio and the like, and the important significance is realized on promoting the development of the hexagonal ferrite in the field of millimeter wave devices.
本发明提供一种Sc掺杂Zn2W铁氧体材料及制备方法，其化学式为BaZn2Fe16‑xScxO27，x＝0,0.1,0.2,0.3,0.4，制备步骤包括:(1)选用BaCO3、ZnO、Sc2O3与Fe2O3为原料，(2)将原料加入去离子水进行一次球磨，(3)将一次球磨后浆料进行干燥，预烧；(4)将预烧料和分散剂加入无水乙醇进行二次球磨，(5)将球磨后的浆料经过湿压磁场成型压制成柱状；(6)再将成型后的柱状在空气炉中煅烧，得到Sc掺杂Zn2W材料，本发明属于固相法，方法可靠，制作工艺简单，成本低，具有可重复性，本发明的Sc掺杂Zn2W铁氧体的具有矫顽力适中、磁晶各向异性场可控、剩磁矩形比高等特点，对促进六角铁氧体在毫米波器件领域发展有重要意义。
Sc-doped hexagonal crystal system Zn2W ferrite material and preparation method thereof
The invention provides an Sc-doped Zn2W ferrite material and a preparation method thereof. The chemical formula of the material is BaZn2Fe16-xScxO27, x is equal to 0, 0.1, 0.2, 0.3 or 0.4, and the preparation method comprises the following steps: (1) selecting BaCO3, ZnO, Sc2O3 and Fe2O3 as raw materials, (2) adding deionized water into the raw materials for primary ball milling, and (3) drying and pre-sintering slurry after primary ball milling; (4) adding the pre-sintered material and a dispersing agent into absolute ethyl alcohol, and carrying out secondary ball milling; (5) molding and pressing the ball-milled slurry into a column shape through a wet-pressing magnetic field; and (6) calcining the formed column in an air furnace to obtain the Sc doped Zn2W material; the method belongs to a solid phase method, the method is reliable, the preparation process is simple, the cost is low, the repeatability is realized, the Sc-doped Zn2W ferrite has the characteristics of moderate coercive force, controllable magnetocrystalline anisotropy field, high residual magnetism rectangular ratio and the like, and the important significance is realized on promoting the development of the hexagonal ferrite in the field of millimeter wave devices.
本发明提供一种Sc掺杂Zn2W铁氧体材料及制备方法，其化学式为BaZn2Fe16‑xScxO27，x＝0,0.1,0.2,0.3,0.4，制备步骤包括:(1)选用BaCO3、ZnO、Sc2O3与Fe2O3为原料，(2)将原料加入去离子水进行一次球磨，(3)将一次球磨后浆料进行干燥，预烧；(4)将预烧料和分散剂加入无水乙醇进行二次球磨，(5)将球磨后的浆料经过湿压磁场成型压制成柱状；(6)再将成型后的柱状在空气炉中煅烧，得到Sc掺杂Zn2W材料，本发明属于固相法，方法可靠，制作工艺简单，成本低，具有可重复性，本发明的Sc掺杂Zn2W铁氧体的具有矫顽力适中、磁晶各向异性场可控、剩磁矩形比高等特点，对促进六角铁氧体在毫米波器件领域发展有重要意义。
Sc-doped hexagonal crystal system Zn2W ferrite material and preparation method thereof
Sc掺杂六角晶系Zn2W铁氧体材料及制备方法
LIU YINGLI (author) / QI GUOMEI (author) / ZHANG HUAIWU (author) / CHEN YANJUN (author) / CHEN JIANFENG (author) / YIN QISHENG (author) / LIU QIAN (author) / CHEN SHIFAN (author)
2020-11-13
Patent
Electronic Resource
Chinese
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