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Ferrite wave-absorbing material and preparation method thereof
The invention relates to a ferrite wave-absorbing material and a preparation method thereof, the chemical formula of the ferrite wave-absorbing material is BaCoxNiyTizLa2-x-y-zFe16-2x-2y-2zO27, in the formula, x is greater than or equal to 0 and less than or equal to 2, y is greater than or equal to 0 and less than or equal to 2, and z is greater than or equal to 0 and less than or equal to 2; the ferrite wave-absorbing material is prepared by mixing and sintering raw materials of barium carbonate and ferrous oxide, a mixture of at least two of titanium oxide, cobalt oxide, nickel oxide and lanthanum oxide as a main body and copper oxide as an auxiliary agent. The wave-absorbing material is good in wave-absorbing performance and small in matching thickness, when the thickness is only 0.85 mm, the maximum reflection loss within the frequency band of 26.5-40 GHz reaches-21 dB, the effective absorption bandwidth within the frequency band of-10 dB reaches 13.5 GHz, and the performance of the wave-absorbing material can be further regulated and controlled by adjusting the thickness of the wave-absorbing material; the solid-phase sintering method is adopted for preparation, the process is simple, cost is low, and the method is suitable for industrial mass production.
一种铁氧体吸波材料及其制备方法，该铁氧体吸波材料的化学式为BaCoxNiyTizLa2‑x‑y‑zFe16‑2x‑2y‑2zO27，式中：0≤x≤2，0≤y≤2，0≤z≤2；所述铁氧体吸波材料为，以原料碳酸钡和氧化亚铁，还包括氧化钛、氧化钴、氧化镍和氧化镧中的至少两种以上混合物为主体，氧化铜为助剂混合烧结而成。本发明吸波材料的吸波性能好，且匹配厚度薄，当厚度仅为0.85 mm时，在26.5‑40 GHz频段内的最大反射损耗达‑21 dB，‑10 dB有效吸收带宽达13.5 GHz，其性能可以通过调节吸波材料的厚度进一步进行调控；本发明采用固相烧结法制备，工艺简单，成本低，适合工业大批量生产。
Ferrite wave-absorbing material and preparation method thereof
The invention relates to a ferrite wave-absorbing material and a preparation method thereof, the chemical formula of the ferrite wave-absorbing material is BaCoxNiyTizLa2-x-y-zFe16-2x-2y-2zO27, in the formula, x is greater than or equal to 0 and less than or equal to 2, y is greater than or equal to 0 and less than or equal to 2, and z is greater than or equal to 0 and less than or equal to 2; the ferrite wave-absorbing material is prepared by mixing and sintering raw materials of barium carbonate and ferrous oxide, a mixture of at least two of titanium oxide, cobalt oxide, nickel oxide and lanthanum oxide as a main body and copper oxide as an auxiliary agent. The wave-absorbing material is good in wave-absorbing performance and small in matching thickness, when the thickness is only 0.85 mm, the maximum reflection loss within the frequency band of 26.5-40 GHz reaches-21 dB, the effective absorption bandwidth within the frequency band of-10 dB reaches 13.5 GHz, and the performance of the wave-absorbing material can be further regulated and controlled by adjusting the thickness of the wave-absorbing material; the solid-phase sintering method is adopted for preparation, the process is simple, cost is low, and the method is suitable for industrial mass production.
一种铁氧体吸波材料及其制备方法，该铁氧体吸波材料的化学式为BaCoxNiyTizLa2‑x‑y‑zFe16‑2x‑2y‑2zO27，式中：0≤x≤2，0≤y≤2，0≤z≤2；所述铁氧体吸波材料为，以原料碳酸钡和氧化亚铁，还包括氧化钛、氧化钴、氧化镍和氧化镧中的至少两种以上混合物为主体，氧化铜为助剂混合烧结而成。本发明吸波材料的吸波性能好，且匹配厚度薄，当厚度仅为0.85 mm时，在26.5‑40 GHz频段内的最大反射损耗达‑21 dB，‑10 dB有效吸收带宽达13.5 GHz，其性能可以通过调节吸波材料的厚度进一步进行调控；本发明采用固相烧结法制备，工艺简单，成本低，适合工业大批量生产。
Ferrite wave-absorbing material and preparation method thereof
一种铁氧体吸波材料及其制备方法
LI YUDONG (author) / TAN CHUNLIN (author) / CHEN KEN (author) / GAO YIN (author) / YAO RUI (author)
2022-03-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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