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Manganese zinc ferrite wave-absorbing material and preparation method thereof
The invention belongs to the technical field of magnetic materials, and provides a manganese zinc ferrite wave-absorbing material and a preparation method thereof. The method comprises the following steps: mixing ferric oxide, manganous-manganic oxide and zinc oxide, and pre-sintering to obtain a pre-sintered material; mixing the pre-sintered material with a polyvinyl alcohol solution, and molding to obtain a green body; and sintering the green body in a mixed atmosphere of nitrogen and oxygen to obtain the manganese zinc ferrite wave-absorbing material. The preparation method is simple in preparation process, controllable in cost and suitable for large-scale production, the obtained manganese-zinc ferrite wave-absorbing material has good wave-absorbing performance in a microwave low-frequency P wave band, the reflection loss of the manganese-zinc ferrite wave-absorbing material can reach-28dB at the minimum under the thickness of 5.00 mm, and the manganese-zinc ferrite wave-absorbing material can basically cover the whole wave band. As a single absorbent, the manganese zinc ferrite wave-absorbing material prepared by the invention has a wide application prospect especially in the civil field.
本发明属于磁性材料技术领域，提供了一种锰锌铁氧体吸波材料及其制备方法。该方法包含下列步骤：将三氧化二铁、四氧化三锰和氧化锌混合进行预烧，得到预烧料；将预烧料与聚乙烯醇溶液混合、成型，得到生坯；在氮气和氧气混合气氛下，将生坯进行烧结，得到锰锌铁氧体吸波材料。本发明制备工艺简单，成本可控，适合规模化生产，得到的锰锌铁氧体吸波材料在微波低频P波段具有良好的吸波性能，在5.00mm厚度下，其反射损耗最低可达‑28dB，基本可以覆盖整个波段。本发明制备的锰锌铁氧体吸波材料作为一种单一型吸收剂，尤其在民用领域具有广泛的应用前景。
Manganese zinc ferrite wave-absorbing material and preparation method thereof
The invention belongs to the technical field of magnetic materials, and provides a manganese zinc ferrite wave-absorbing material and a preparation method thereof. The method comprises the following steps: mixing ferric oxide, manganous-manganic oxide and zinc oxide, and pre-sintering to obtain a pre-sintered material; mixing the pre-sintered material with a polyvinyl alcohol solution, and molding to obtain a green body; and sintering the green body in a mixed atmosphere of nitrogen and oxygen to obtain the manganese zinc ferrite wave-absorbing material. The preparation method is simple in preparation process, controllable in cost and suitable for large-scale production, the obtained manganese-zinc ferrite wave-absorbing material has good wave-absorbing performance in a microwave low-frequency P wave band, the reflection loss of the manganese-zinc ferrite wave-absorbing material can reach-28dB at the minimum under the thickness of 5.00 mm, and the manganese-zinc ferrite wave-absorbing material can basically cover the whole wave band. As a single absorbent, the manganese zinc ferrite wave-absorbing material prepared by the invention has a wide application prospect especially in the civil field.
本发明属于磁性材料技术领域，提供了一种锰锌铁氧体吸波材料及其制备方法。该方法包含下列步骤：将三氧化二铁、四氧化三锰和氧化锌混合进行预烧，得到预烧料；将预烧料与聚乙烯醇溶液混合、成型，得到生坯；在氮气和氧气混合气氛下，将生坯进行烧结，得到锰锌铁氧体吸波材料。本发明制备工艺简单，成本可控，适合规模化生产，得到的锰锌铁氧体吸波材料在微波低频P波段具有良好的吸波性能，在5.00mm厚度下，其反射损耗最低可达‑28dB，基本可以覆盖整个波段。本发明制备的锰锌铁氧体吸波材料作为一种单一型吸收剂，尤其在民用领域具有广泛的应用前景。
Manganese zinc ferrite wave-absorbing material and preparation method thereof
一种锰锌铁氧体吸波材料及其制备方法
SHI HUIGANG (Autor:in) / GUO JUN (Autor:in) / LIU ZHONGQING (Autor:in) / YANG ZHENG (Autor:in)
02.01.2024
Patent
Elektronische Ressource
Chinesisch
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