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Preparation method of yttrium iron garnet ferrite with high meso-medium and medium saturation magnetization
The invention relates to a preparation method of yttrium iron garnet ferrite with high meso-medium and medium saturation magnetization, and belongs to the technical field of microwave and magnetic materials. The formula of dodecahedral Y < 3 + >, octahedral Fe < 3 + > and tetrahedral Fe < 3 + > in a substituted garnet structure and a secondary granulation process are adopted, so that the obtained material has medium saturation magnetization intensity of more than 1050G and less than 1250G and is suitable for low-frequency-band microwave ferrite devices; meanwhile, the high dielectric constant epsilon 'is larger than 20, the low ferromagnetic resonance line width delta H is smaller than or equal to 24 Oe, the dielectric loss tan delta epsilon is smaller than 1 * 10 <-4 >, the design size of a device can be reduced, and miniaturization and light weight of the microwave ferrite device are facilitated.
一种高介中等饱和磁化强度钇铁石榴石铁氧体制备方法，属于微波与磁性材料技术领域。本发明采用取代石榴石结构中十二面体位Y3+、八面体位和四面体位Fe3+的配方以及二次造粒的工艺，使得到的材料具备中等饱和磁化强度1050G＜4πMs＜1250G，适用于低频段微波铁氧体器件，同时具备高介电常数ε'＞20、低的铁磁共振线宽ΔH≤24Oe和介电损耗tanδε＜1×10‑4，能够减小器件的设计尺寸，有利于微波铁氧体器件的小型化、轻量化。
Preparation method of yttrium iron garnet ferrite with high meso-medium and medium saturation magnetization
The invention relates to a preparation method of yttrium iron garnet ferrite with high meso-medium and medium saturation magnetization, and belongs to the technical field of microwave and magnetic materials. The formula of dodecahedral Y < 3 + >, octahedral Fe < 3 + > and tetrahedral Fe < 3 + > in a substituted garnet structure and a secondary granulation process are adopted, so that the obtained material has medium saturation magnetization intensity of more than 1050G and less than 1250G and is suitable for low-frequency-band microwave ferrite devices; meanwhile, the high dielectric constant epsilon 'is larger than 20, the low ferromagnetic resonance line width delta H is smaller than or equal to 24 Oe, the dielectric loss tan delta epsilon is smaller than 1 * 10 <-4 >, the design size of a device can be reduced, and miniaturization and light weight of the microwave ferrite device are facilitated.
一种高介中等饱和磁化强度钇铁石榴石铁氧体制备方法，属于微波与磁性材料技术领域。本发明采用取代石榴石结构中十二面体位Y3+、八面体位和四面体位Fe3+的配方以及二次造粒的工艺，使得到的材料具备中等饱和磁化强度1050G＜4πMs＜1250G，适用于低频段微波铁氧体器件，同时具备高介电常数ε'＞20、低的铁磁共振线宽ΔH≤24Oe和介电损耗tanδε＜1×10‑4，能够减小器件的设计尺寸，有利于微波铁氧体器件的小型化、轻量化。
Preparation method of yttrium iron garnet ferrite with high meso-medium and medium saturation magnetization
一种高介中等饱和磁化强度钇铁石榴石铁氧体制备方法
SUN KE (Autor:in) / GUO ZHIQIANG (Autor:in) / LIAO YANG (Autor:in) / WU CHUANJIAN (Autor:in) / ZHANG XIAOFENG (Autor:in) / JIANG XIAONA (Autor:in) / LI QIFAN (Autor:in) / YU ZHONG (Autor:in) / LAN ZHONGWEN (Autor:in)
07.06.2024
Patent
Elektronische Ressource
Chinesisch
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