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High-magneto-coupling low-loss ferrite magnetostrictive material and preparation method thereof
The invention belongs to the field of magnetostrictive materials, and mainly relates to a ferrite magnetostrictive material with high magneto-mechanical coupling and low loss and a preparation method thereof. The chemical formula of the magnetostrictive material is Niy (1-x) Cu (1-y) (1-x) CoxFe2O4, y is larger than or equal to 0.4 and smaller than or equal to 0.9, and x is larger than or equal to 0 and smaller than or equal to 0.4. The preparation method mainly comprises the following steps: 1, raw material powder preparation, primary ball milling, pre-sintering, secondary ball milling, wet magnetic field orientation, drying and sintering; and 2, raw material powder preparation, primary ball milling, pre-sintering, secondary ball milling, granulation, dry pressing molding and sintering. The absolute value of the magnetostriction coefficient of the prepared material is 28-32 ppm, and the prepared material has the characteristics of high magneto-mechanical coupling coefficient and low magnetic loss.
本发明属于磁致伸缩材料领域，主要涉及一种高磁机耦合、低损耗的铁氧体磁致伸缩材料及制备方法。磁致伸缩材料的化学式为：Niy(1‑x)Cu(1‑y)(1‑x)CoxFe2O4，0.4≤y≤0.9,0≤x≤0.4；所述制备方法主要包括：1.原料粉体制备、一次球磨、预烧、二次球磨、湿法磁场取向、干燥、烧结。2.原料粉体制备、一次球磨、预烧、二次球磨、造粒、干压成型、烧结。制备出的材料磁致伸缩系数绝对值为28‑32ppm，具有高磁机耦合系数、低磁损耗的特点。
High-magneto-coupling low-loss ferrite magnetostrictive material and preparation method thereof
The invention belongs to the field of magnetostrictive materials, and mainly relates to a ferrite magnetostrictive material with high magneto-mechanical coupling and low loss and a preparation method thereof. The chemical formula of the magnetostrictive material is Niy (1-x) Cu (1-y) (1-x) CoxFe2O4, y is larger than or equal to 0.4 and smaller than or equal to 0.9, and x is larger than or equal to 0 and smaller than or equal to 0.4. The preparation method mainly comprises the following steps: 1, raw material powder preparation, primary ball milling, pre-sintering, secondary ball milling, wet magnetic field orientation, drying and sintering; and 2, raw material powder preparation, primary ball milling, pre-sintering, secondary ball milling, granulation, dry pressing molding and sintering. The absolute value of the magnetostriction coefficient of the prepared material is 28-32 ppm, and the prepared material has the characteristics of high magneto-mechanical coupling coefficient and low magnetic loss.
本发明属于磁致伸缩材料领域，主要涉及一种高磁机耦合、低损耗的铁氧体磁致伸缩材料及制备方法。磁致伸缩材料的化学式为：Niy(1‑x)Cu(1‑y)(1‑x)CoxFe2O4，0.4≤y≤0.9,0≤x≤0.4；所述制备方法主要包括：1.原料粉体制备、一次球磨、预烧、二次球磨、湿法磁场取向、干燥、烧结。2.原料粉体制备、一次球磨、预烧、二次球磨、造粒、干压成型、烧结。制备出的材料磁致伸缩系数绝对值为28‑32ppm，具有高磁机耦合系数、低磁损耗的特点。
High-magneto-coupling low-loss ferrite magnetostrictive material and preparation method thereof
高磁机耦合、低损耗的铁氧体磁致伸缩材料及制备方法
LIU YINGLI (Autor:in) / GONG MEIZHENG (Autor:in) / ZHAO WEIAN (Autor:in) / LI ZELIN (Autor:in) / YIN QISHENG (Autor:in) / ROH SE-HA (Autor:in) / CHEN ZHICONG (Autor:in)
06.08.2024
Patent
Elektronische Ressource
Chinesisch
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