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Low-coercivity lithium titanium zinc ferrite material and preparation method thereof
A low-coercivity lithium titanium zinc ferrite material comprises a main material and additives, the main material is Li (0.5 + 0.5 x <-0.5 y >) Ti < x > Zn < y > Mn < 0.06 > Fe (2.4-1.5 x <-0.5 y >) O < 4 >, and the additives are Sb2O3, Bi2O3 and CaCO3. According to the invention, Ti < 4 + >, Zn < 2 + > and Mn < 3 + > are used for substitution, so that the saturation magnetization is 2500 Gs, and the coercive force is properly reduced; bi2O3, Sb2O3 and CaCO3 are adopted as a combined additive to control the microstructure of the material, a sintering process is combined, the coercive force and the magnetization intensity temperature coefficient of the lithium ferrite are reduced, meanwhile, the remanence ratio is increased, and the prepared lithium-titanium-zinc ferrite has the advantages of low coercive force, high remanence ratio and low magnetization intensity temperature coefficient, and also has the advantages of low cost and low cost. And relatively low ferromagnetic resonance line width and dielectric loss can be maintained.
一种低矫顽力锂钛锌铁氧体材料，包括主料和添加剂，主料为Li0.5+0.5x‑0.5yTixZnyMn0.06Fe2.44‑1.5x‑0.5yO4，添加剂为：Sb2O3、Bi2O3和CaCO3。本发明通过Ti4+、Zn2+、Mn3+取代，保证其饱和磁化强度为2500Gs并适当降低矫顽力；采用Bi2O3、Sb2O3和CaCO3作为联合添加剂控制材料的显微结构，结合烧结工艺，降低锂系铁氧体的矫顽力和磁化强度温度系数，同时提高剩磁比，制得的锂钛锌铁氧体在具有低矫顽力、高剩磁比和低磁化强度温度系数的同时，还能保持较低的铁磁共振线宽和介电损耗。
Low-coercivity lithium titanium zinc ferrite material and preparation method thereof
A low-coercivity lithium titanium zinc ferrite material comprises a main material and additives, the main material is Li (0.5 + 0.5 x <-0.5 y >) Ti < x > Zn < y > Mn < 0.06 > Fe (2.4-1.5 x <-0.5 y >) O < 4 >, and the additives are Sb2O3, Bi2O3 and CaCO3. According to the invention, Ti < 4 + >, Zn < 2 + > and Mn < 3 + > are used for substitution, so that the saturation magnetization is 2500 Gs, and the coercive force is properly reduced; bi2O3, Sb2O3 and CaCO3 are adopted as a combined additive to control the microstructure of the material, a sintering process is combined, the coercive force and the magnetization intensity temperature coefficient of the lithium ferrite are reduced, meanwhile, the remanence ratio is increased, and the prepared lithium-titanium-zinc ferrite has the advantages of low coercive force, high remanence ratio and low magnetization intensity temperature coefficient, and also has the advantages of low cost and low cost. And relatively low ferromagnetic resonance line width and dielectric loss can be maintained.
一种低矫顽力锂钛锌铁氧体材料，包括主料和添加剂，主料为Li0.5+0.5x‑0.5yTixZnyMn0.06Fe2.44‑1.5x‑0.5yO4，添加剂为：Sb2O3、Bi2O3和CaCO3。本发明通过Ti4+、Zn2+、Mn3+取代，保证其饱和磁化强度为2500Gs并适当降低矫顽力；采用Bi2O3、Sb2O3和CaCO3作为联合添加剂控制材料的显微结构，结合烧结工艺，降低锂系铁氧体的矫顽力和磁化强度温度系数，同时提高剩磁比，制得的锂钛锌铁氧体在具有低矫顽力、高剩磁比和低磁化强度温度系数的同时，还能保持较低的铁磁共振线宽和介电损耗。
Low-coercivity lithium titanium zinc ferrite material and preparation method thereof
低矫顽力锂钛锌铁氧体材料及其制备方法
JIANG XIAONA (Autor:in) / SU QIANFA (Autor:in) / YU ZHONG (Autor:in) / SUN KE (Autor:in) / WU CHUANJIAN (Autor:in) / LI QIFAN (Autor:in) / LAN ZHONGWEN (Autor:in)
14.06.2024
Patent
Elektronische Ressource
Chinesisch
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