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Preparation method of NiCuZn ferrite thick film material used for Ka wave band circulator
A preparation method of a NiCuZn ferrite thick film material used for a Ka wave band circulator belongs to the technical field of electronic materials. The preparation method includes the following steps: 1) preparation of main materials: employing the following raw materials: 48.0-49.0 mol% of Fe2O3, 19-21.0 mol% of ZnO, 4.0-5.0 mol% of CuO and 26.0-27.0 mol% of NiO; 2) primary ball milling; 3) pre-burning: pre-burning the materials at 800-1000 DEG C and maintaining the temperature for 1-3 h; 4) doping: adding the following additives: 0.05-0.1 wt% of CaO and 0.05-0.1 wt% of Bi2O3; 5) slurry material ball milling: adding 40-50 wt% of an organic adhesive and 40-50 wt% of anhydrous ethanol to the powder material and performing ball milling for 4-8 h; 6) tape casting: performing tape casting to the slurry material to obtain raw film belts being 50-60 [mu]m; 7) lamination: laminating the raw film belts by 20-22 layers and pressing the laminated raw film belts under 5-7 MPa to obtain a green film body being 100-140 [mu]m in thickness; and 8) sintering: performing temperature-maintained sintering to the green film body at 1020-1080 DEG C for 1-3 h. The ferrite material is high in saturated magnetization intensity (4[pi]Ms), is good in temperature stability, is high in resistivity and is low in microwave loss.
Preparation method of NiCuZn ferrite thick film material used for Ka wave band circulator
A preparation method of a NiCuZn ferrite thick film material used for a Ka wave band circulator belongs to the technical field of electronic materials. The preparation method includes the following steps: 1) preparation of main materials: employing the following raw materials: 48.0-49.0 mol% of Fe2O3, 19-21.0 mol% of ZnO, 4.0-5.0 mol% of CuO and 26.0-27.0 mol% of NiO; 2) primary ball milling; 3) pre-burning: pre-burning the materials at 800-1000 DEG C and maintaining the temperature for 1-3 h; 4) doping: adding the following additives: 0.05-0.1 wt% of CaO and 0.05-0.1 wt% of Bi2O3; 5) slurry material ball milling: adding 40-50 wt% of an organic adhesive and 40-50 wt% of anhydrous ethanol to the powder material and performing ball milling for 4-8 h; 6) tape casting: performing tape casting to the slurry material to obtain raw film belts being 50-60 [mu]m; 7) lamination: laminating the raw film belts by 20-22 layers and pressing the laminated raw film belts under 5-7 MPa to obtain a green film body being 100-140 [mu]m in thickness; and 8) sintering: performing temperature-maintained sintering to the green film body at 1020-1080 DEG C for 1-3 h. The ferrite material is high in saturated magnetization intensity (4[pi]Ms), is good in temperature stability, is high in resistivity and is low in microwave loss.
Preparation method of NiCuZn ferrite thick film material used for Ka wave band circulator
JIANG XIAONA (author) / CHEN DAN (author) / YU ZHONG (author) / SUN KE (author) / LAN ZHONGWEN (author) / YAN ZHOUMIN (author)
2016-01-13
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
NICUZN FERRITE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF
| European Patent Office | 2024