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Low-loss tantalum-silicon composite doped manganese zinc ferrite material and preparation method thereof
The invention relates to a low-loss tantalum-silicon composite doped manganese zinc ferrite material and preparation thereof, the material comprises main materials and dopants, the main materials comprise iron oxide, manganese oxide and zinc oxide, the mass ratio of iron oxide to manganese oxide to zinc oxide is (68-71): (20-25): (6-9), and the dopants comprise tantalum and silicon. The preparation method comprises the following steps: S1, adding the main material into a ball mill for ball milling to obtain a mixture A; S2, pre-sintering the mixture A, and then cooling to room temperature to obtain a pre-sintered material B; S3, adding the pre-sintered material B and a doping material into a ball mill for secondary ball milling, and then drying to obtain a mixture C; S4, adding a polyvinyl alcohol solution into the mixture C, mixing, performing spray granulation, and sieving to obtain powder particles; S5, putting the powder particles into a mold to be subjected to compression molding to obtain a blank; and S6, sintering the blank in an equilibrium atmosphere. Compared with the prior art, the material disclosed by the invention has relatively high saturation magnetic flux density and relatively low high-frequency loss.
本发明涉及一种低损耗的钽‑硅复合掺杂锰锌铁氧体材料及其制备，材料包括主料和掺杂料，主料包括氧化铁、氧化锰和氧化锌，氧化铁、氧化锰和氧化锌的质量比为(68～71):(20～25):(6～9)，掺杂料包括钽和硅。制备为：S1：将主料加入球磨机进行球磨，得到混合料A；S2：将混合料A进行预烧，然后冷却至室温得到预烧料B；S3：将预烧料B和掺杂料加入球磨机进行二次球磨，后烘干得到混合料C；S4：向混合料C中加入聚乙烯醇溶液混合进行喷雾造粒，后过筛得到粉末颗粒；S5：将粉末颗粒放入模具进行压制成型，得到坯件；S6：将坯件在平衡气氛下进行烧结。与现有技术相比，本发明的材料具有较高的饱和磁通密度以及较低的高频损耗。
Low-loss tantalum-silicon composite doped manganese zinc ferrite material and preparation method thereof
The invention relates to a low-loss tantalum-silicon composite doped manganese zinc ferrite material and preparation thereof, the material comprises main materials and dopants, the main materials comprise iron oxide, manganese oxide and zinc oxide, the mass ratio of iron oxide to manganese oxide to zinc oxide is (68-71): (20-25): (6-9), and the dopants comprise tantalum and silicon. The preparation method comprises the following steps: S1, adding the main material into a ball mill for ball milling to obtain a mixture A; S2, pre-sintering the mixture A, and then cooling to room temperature to obtain a pre-sintered material B; S3, adding the pre-sintered material B and a doping material into a ball mill for secondary ball milling, and then drying to obtain a mixture C; S4, adding a polyvinyl alcohol solution into the mixture C, mixing, performing spray granulation, and sieving to obtain powder particles; S5, putting the powder particles into a mold to be subjected to compression molding to obtain a blank; and S6, sintering the blank in an equilibrium atmosphere. Compared with the prior art, the material disclosed by the invention has relatively high saturation magnetic flux density and relatively low high-frequency loss.
本发明涉及一种低损耗的钽‑硅复合掺杂锰锌铁氧体材料及其制备，材料包括主料和掺杂料，主料包括氧化铁、氧化锰和氧化锌，氧化铁、氧化锰和氧化锌的质量比为(68～71):(20～25):(6～9)，掺杂料包括钽和硅。制备为：S1：将主料加入球磨机进行球磨，得到混合料A；S2：将混合料A进行预烧，然后冷却至室温得到预烧料B；S3：将预烧料B和掺杂料加入球磨机进行二次球磨，后烘干得到混合料C；S4：向混合料C中加入聚乙烯醇溶液混合进行喷雾造粒，后过筛得到粉末颗粒；S5：将粉末颗粒放入模具进行压制成型，得到坯件；S6：将坯件在平衡气氛下进行烧结。与现有技术相比，本发明的材料具有较高的饱和磁通密度以及较低的高频损耗。
Low-loss tantalum-silicon composite doped manganese zinc ferrite material and preparation method thereof
低损耗的钽-硅复合掺杂锰锌铁氧体材料及其制备方法
JIANG HAOJIE (Autor:in) / YAN PENGFEI (Autor:in) / YAN BIAO (Autor:in)
28.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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