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Fe-doped CuAlO2 high-temperature wave-absorbing ceramic and preparation method thereof
The invention discloses Fe-doped CuAlO2 high-temperature wave-absorbing ceramic and a preparation method thereof, and belongs to the technical field of wave-absorbing material preparation. According to the preparation method, Fe is used for doping CuAlO2 to change the conductivity and electromagnetic parameters of CuAlO2 and to generate CuAl<1-x>FeO2 powder with x smaller than or equal to 0.2,and firing is further performed to form the ceramic. By adopting a Cu source substance, an Al source substance and a Fe source substance as reactants, a ball-milling grinding process and a pre-sintering sintering glue discharging process are matched, and finally the Fe-doped CuAlO2 high-temperature wave-absorbing ceramic is prepared. The preparation method is good in process stability, wide in rawmaterial application range and low in cost, and can be popularized to macro production of the material. The Fe-doped CuAlO2 high-temperature wave-absorbing ceramic prepared by the preparation methodhas a chemical formula of CuAl<1-x>FeO2, wherein x is smaller than or equal to 0.2, and due to introduction of Fe, the CuAl<1-x>FeO2 ceramic has relatively large dielectric loss, magnetic property and high-temperature resistance, so that the finally prepared Fe-doped CuAlO2 high-temperature wave-absorbing ceramic has high temperature resistance and excellent wave-absorbing property, and canbe widely applied to high-tech industries such as space flight and aviation.
本发明公开了一种Fe掺杂CuAlO高温吸波陶瓷及其制备方法，属于吸波材料制备技术领域。所述制备方法中利用Fe掺杂CuAlO，改变CuAlO的电导率和电磁参数，生成x≤0.2的CuAlFeO粉末，进而烧结为陶瓷，通过采用Cu源物质、Al源物质和Fe源物质作为反应物，并配有球磨研磨工艺、预烧结烧结排胶工艺，最终制得Fe掺杂CuAlO高温吸波陶瓷。所述制备方法工艺稳定性好、原料适用范围广、成本低，能够推广于该材料的宏量生产。采用上述制备方法制得的Fe掺杂CuAlO高温吸波陶瓷，化学式为CuAlFeO，x≤0.2，由于Fe的引入，使CuAlFeO陶瓷具有较大的介电损耗、磁性能和耐高温性能，因此最终制得的Fe掺杂CuAlO高温吸波陶瓷兼具耐高温和优异的吸波性能，可广泛应用于航天航空等高新技术行业中。
Fe-doped CuAlO2 high-temperature wave-absorbing ceramic and preparation method thereof
The invention discloses Fe-doped CuAlO2 high-temperature wave-absorbing ceramic and a preparation method thereof, and belongs to the technical field of wave-absorbing material preparation. According to the preparation method, Fe is used for doping CuAlO2 to change the conductivity and electromagnetic parameters of CuAlO2 and to generate CuAl<1-x>FeO2 powder with x smaller than or equal to 0.2,and firing is further performed to form the ceramic. By adopting a Cu source substance, an Al source substance and a Fe source substance as reactants, a ball-milling grinding process and a pre-sintering sintering glue discharging process are matched, and finally the Fe-doped CuAlO2 high-temperature wave-absorbing ceramic is prepared. The preparation method is good in process stability, wide in rawmaterial application range and low in cost, and can be popularized to macro production of the material. The Fe-doped CuAlO2 high-temperature wave-absorbing ceramic prepared by the preparation methodhas a chemical formula of CuAl<1-x>FeO2, wherein x is smaller than or equal to 0.2, and due to introduction of Fe, the CuAl<1-x>FeO2 ceramic has relatively large dielectric loss, magnetic property and high-temperature resistance, so that the finally prepared Fe-doped CuAlO2 high-temperature wave-absorbing ceramic has high temperature resistance and excellent wave-absorbing property, and canbe widely applied to high-tech industries such as space flight and aviation.
本发明公开了一种Fe掺杂CuAlO高温吸波陶瓷及其制备方法，属于吸波材料制备技术领域。所述制备方法中利用Fe掺杂CuAlO，改变CuAlO的电导率和电磁参数，生成x≤0.2的CuAlFeO粉末，进而烧结为陶瓷，通过采用Cu源物质、Al源物质和Fe源物质作为反应物，并配有球磨研磨工艺、预烧结烧结排胶工艺，最终制得Fe掺杂CuAlO高温吸波陶瓷。所述制备方法工艺稳定性好、原料适用范围广、成本低，能够推广于该材料的宏量生产。采用上述制备方法制得的Fe掺杂CuAlO高温吸波陶瓷，化学式为CuAlFeO，x≤0.2，由于Fe的引入，使CuAlFeO陶瓷具有较大的介电损耗、磁性能和耐高温性能，因此最终制得的Fe掺杂CuAlO高温吸波陶瓷兼具耐高温和优异的吸波性能，可广泛应用于航天航空等高新技术行业中。
Fe-doped CuAlO2 high-temperature wave-absorbing ceramic and preparation method thereof
一种Fe掺杂CuAlO高温吸波陶瓷及其制备方法
SU JINBU (author) / LI PING (author) / WANG CHENGBING (author) / WANG WEIKE (author) / ZHAO XIALIN (author) / ZHANG PENGKUI (author)
2020-08-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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