Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-frequency ferrite wave-absorbing material and preparation method thereof
The invention discloses a low-frequency ferrite wave-absorbing material and a preparation method thereof, and belongs to the technical field of magnetic materials, and the low-frequency ferrite wave-absorbing material is prepared from the following raw materials in percentage by weight: 56-59% of Fe2O3, 23-25% of MnCO3, 18-20% of ZnO and 0.5-0.9% of Co2O3; the secondary additive is prepared from the following components in percentage by weight: 0.1 to 0.5 percent of SiO2 and 0 to 0.05 percent of CaCO3; the ferrite wave-absorbing material has good wave-absorbing performance at low frequency, when the thickness is 5.5 mm, the frequency covered by the low-frequency end is lower than that in the prior art, the ferrite wave-absorbing material has-10 dB absorption strength at 0.06-1 GHz, meanwhile, the main body of the ferrite wave-absorbing material is a MnZn phase, the ferrite wave-absorbing material has good chemical stability (corrosion and salt and alkali resistance), the cost is low, and the ferrite wave-absorbing material is suitable for large-scale popularization and application. And the material can be widely applied to low-frequency electromagnetic wave absorption.
本发明公开了一种低频铁氧体吸波材料及其制备方法，属于磁性材料技术领域，按原料重量百分比计，主体配方为Fe2O3：56~59％、MnCO3：23~25%、ZnO：18~20%、Co2O3：0.5~0.9%；二次添加物为：SiO2：0.1~0.5wt%、CaCO3：0~0.05wt%；本发明的铁氧体吸波材料在低频下具有较好的吸波性能，当厚度为5.5mm时，低频端覆盖的频率相对于现有技术更低，在0.06~1GHz，都具有‑10dB的吸收强度，同时其主体为MnZn相，具有良好的化学稳定性（耐腐蚀盐碱），且成本低廉，可大规模批量化生产可广泛用于低频下的电磁波吸收。
Low-frequency ferrite wave-absorbing material and preparation method thereof
The invention discloses a low-frequency ferrite wave-absorbing material and a preparation method thereof, and belongs to the technical field of magnetic materials, and the low-frequency ferrite wave-absorbing material is prepared from the following raw materials in percentage by weight: 56-59% of Fe2O3, 23-25% of MnCO3, 18-20% of ZnO and 0.5-0.9% of Co2O3; the secondary additive is prepared from the following components in percentage by weight: 0.1 to 0.5 percent of SiO2 and 0 to 0.05 percent of CaCO3; the ferrite wave-absorbing material has good wave-absorbing performance at low frequency, when the thickness is 5.5 mm, the frequency covered by the low-frequency end is lower than that in the prior art, the ferrite wave-absorbing material has-10 dB absorption strength at 0.06-1 GHz, meanwhile, the main body of the ferrite wave-absorbing material is a MnZn phase, the ferrite wave-absorbing material has good chemical stability (corrosion and salt and alkali resistance), the cost is low, and the ferrite wave-absorbing material is suitable for large-scale popularization and application. And the material can be widely applied to low-frequency electromagnetic wave absorption.
本发明公开了一种低频铁氧体吸波材料及其制备方法，属于磁性材料技术领域，按原料重量百分比计，主体配方为Fe2O3：56~59％、MnCO3：23~25%、ZnO：18~20%、Co2O3：0.5~0.9%；二次添加物为：SiO2：0.1~0.5wt%、CaCO3：0~0.05wt%；本发明的铁氧体吸波材料在低频下具有较好的吸波性能，当厚度为5.5mm时，低频端覆盖的频率相对于现有技术更低，在0.06~1GHz，都具有‑10dB的吸收强度，同时其主体为MnZn相，具有良好的化学稳定性（耐腐蚀盐碱），且成本低廉，可大规模批量化生产可广泛用于低频下的电磁波吸收。
Low-frequency ferrite wave-absorbing material and preparation method thereof
一种低频铁氧体吸波材料及其制备方法
XIAN CONG (Autor:in) / WANG DIANJIE (Autor:in) / HUANG XIAOZHONG (Autor:in) / KONG WEI (Autor:in) / REN SHIJING (Autor:in) / LIAO YANG (Autor:in)
09.12.2022
Patent
Elektronische Ressource
Chinesisch
Ferrite wave-absorbing material and preparation method thereof
| Europäisches Patentamt | 2020
Ferrite wave-absorbing material and preparation method thereof
| Europäisches Patentamt | 2022
Ferrite wave-absorbing material and preparation method thereof
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2021
High-entropy ferrite wave-absorbing material and preparation method thereof
| Europäisches Patentamt | 2023