Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing high-orientation-degree planar hexagonal ferrite through uniaxial magnetic field orientation
The invention relates to the technical field of ferrite materials, and discloses a method for preparing high-orientation-degree planar hexagonal ferrite through uniaxial magnetic field orientation, and the method comprises the following steps: S1, weighing BaCO3, CuO, TiO2 and Fe2O3 according to the stoichiometric number of Cu-18H hexagonal ferrite, and taking raw material powder; s2, ball-milling the raw material powder for 2-4 hours, and uniformly mixing to obtain a primary ball-milled mixture; s3, drying and pre-sintering the primary ball-milled mixed material to obtain a Cu-18H hexagonal ferrite pre-sintered material; s4, doping NiO into the Cu-18H hexagonal ferrite pre-sintered material, and uniformly mixing the Cu-18H hexagonal ferrite pre-sintered material and the NiO; s5, the mixed material doped with NiO is subjected to secondary ball milling for 6-10 h, and a secondary ball-milled mixed material is obtained; s6, pressing the secondary ball-milled mixture into a green body by adopting a single-axis magnetic field molding press; and S7, sintering the green body to obtain the planar hexagonal ferrite. According to the invention, a uniaxial magnetic field orientation technology is utilized, and Ni < 2 + > ion substitution is combined to regulate and control the easy magnetization axis direction of the 18H hexagonal ferrite, so that conditions required by production can be reduced, and low-cost and high-efficiency production is realized.
本发明涉及铁氧体材料技术领域，公开了一种单轴磁场取向制备高取向度平面型六角铁氧体的方法，包括如下步骤：S1按Cu‑18H六角铁氧体的化学计量数，称BaCO3、CuO、TiO2、Fe2O3取原料粉末；S2将原料粉末球磨2‑4h，混合均匀，得到一次球磨混料；S3将一次球磨混料烘干，预烧结，得到Cu‑18H六角铁氧体预烧料；S4向Cu‑18H六角铁氧体预烧料中掺杂NiO，混合均匀；S5将掺杂有NiO的混料进行二次球磨，球磨6‑10h，得到二次球磨混料；S6采用单轴磁场成型压机，将二次球磨混料压制成生坯；S7将生坯进行烧结，得到所述平面型六角铁氧体。本发明利用单轴磁场取向技术，联合Ni2+离子取代调控18H六角铁氧体易磁化轴方向，既能降低生产所需的条件，实现低成本、高效率生产。
Method for preparing high-orientation-degree planar hexagonal ferrite through uniaxial magnetic field orientation
The invention relates to the technical field of ferrite materials, and discloses a method for preparing high-orientation-degree planar hexagonal ferrite through uniaxial magnetic field orientation, and the method comprises the following steps: S1, weighing BaCO3, CuO, TiO2 and Fe2O3 according to the stoichiometric number of Cu-18H hexagonal ferrite, and taking raw material powder; s2, ball-milling the raw material powder for 2-4 hours, and uniformly mixing to obtain a primary ball-milled mixture; s3, drying and pre-sintering the primary ball-milled mixed material to obtain a Cu-18H hexagonal ferrite pre-sintered material; s4, doping NiO into the Cu-18H hexagonal ferrite pre-sintered material, and uniformly mixing the Cu-18H hexagonal ferrite pre-sintered material and the NiO; s5, the mixed material doped with NiO is subjected to secondary ball milling for 6-10 h, and a secondary ball-milled mixed material is obtained; s6, pressing the secondary ball-milled mixture into a green body by adopting a single-axis magnetic field molding press; and S7, sintering the green body to obtain the planar hexagonal ferrite. According to the invention, a uniaxial magnetic field orientation technology is utilized, and Ni < 2 + > ion substitution is combined to regulate and control the easy magnetization axis direction of the 18H hexagonal ferrite, so that conditions required by production can be reduced, and low-cost and high-efficiency production is realized.
本发明涉及铁氧体材料技术领域，公开了一种单轴磁场取向制备高取向度平面型六角铁氧体的方法，包括如下步骤：S1按Cu‑18H六角铁氧体的化学计量数，称BaCO3、CuO、TiO2、Fe2O3取原料粉末；S2将原料粉末球磨2‑4h，混合均匀，得到一次球磨混料；S3将一次球磨混料烘干，预烧结，得到Cu‑18H六角铁氧体预烧料；S4向Cu‑18H六角铁氧体预烧料中掺杂NiO，混合均匀；S5将掺杂有NiO的混料进行二次球磨，球磨6‑10h，得到二次球磨混料；S6采用单轴磁场成型压机，将二次球磨混料压制成生坯；S7将生坯进行烧结，得到所述平面型六角铁氧体。本发明利用单轴磁场取向技术，联合Ni2+离子取代调控18H六角铁氧体易磁化轴方向，既能降低生产所需的条件，实现低成本、高效率生产。
Method for preparing high-orientation-degree planar hexagonal ferrite through uniaxial magnetic field orientation
一种单轴磁场取向制备高取向度平面型六角铁氧体的方法
LI QIFAN (Autor:in) / LIANG YAHUI (Autor:in) / YU ZHONG (Autor:in) / TANG MINGXING (Autor:in) / WU CHUANJIAN (Autor:in) / LEE YUAN XING (Autor:in) / JIANG XIAONA (Autor:in) / SUN KE (Autor:in) / LAN ZHONGWEN (Autor:in)
09.07.2024
Patent
Elektronische Ressource
Chinesisch
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