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Ceramic wave-absorbing material as well as preparation method and application thereof
The invention relates to the technical field of wave-absorbing ceramic materials, in particular to a ceramic wave-absorbing material and a preparation method and application thereof. The ceramic wave-absorbing material comprises a ceramic substrate layer and a resonance unit layer which are connected with each other, wherein the resonance unit layer is a metal layer with pores arranged in an array or metal patches arranged in an array; the raw material of the ceramic substrate layer is ceramic slurry, and the ceramic slurry comprises ceramic powder, a dispersing agent, a binder, a sintering aid and a solvent; the raw materials of the metal layer and the metal patch are metal slurry, and the metal slurry comprises metal powder, a dispersing agent, a binder and a solvent; the ceramic powder comprises at least one of aluminum oxide, aluminum nitride and silicon nitride; the metal powder comprises at least one of copper powder, aluminum powder, gold powder, silver powder and platinum powder. The reflection loss of the ceramic wave-absorbing material in the frequency range of 7.5-11.5 GHz is lower than-10dB, the minimum reflection loss is lower than-30dB, and the ceramic wave-absorbing material has high temperature resistance.
本发明涉及吸波陶瓷材料技术领域，具体涉及一种陶瓷吸波材料及其制备方法与应用。该陶瓷吸波材料包括相连接的陶瓷基底层和谐振单元层，谐振单元层为具有阵列排布的孔隙的金属层或阵列排布的金属贴片；陶瓷基底层的原料为陶瓷浆料，陶瓷浆料包括陶瓷粉体、分散剂、粘结剂、助烧剂和溶剂；金属层和所述金属贴片的原料为金属浆料，金属浆料包括金属粉体、分散剂、粘结剂和溶剂；陶瓷粉体包括氧化铝、氮化铝、氮化硅中的至少一种；金属粉体包括铜粉、铝粉、金粉、银粉和铂粉中的至少一种。陶瓷吸波材料在7.5‑11.5GHz的频率范围内反射损耗低于‑10dB，最小反射损耗低于‑30dB，同时具备耐高温性能。
Ceramic wave-absorbing material as well as preparation method and application thereof
The invention relates to the technical field of wave-absorbing ceramic materials, in particular to a ceramic wave-absorbing material and a preparation method and application thereof. The ceramic wave-absorbing material comprises a ceramic substrate layer and a resonance unit layer which are connected with each other, wherein the resonance unit layer is a metal layer with pores arranged in an array or metal patches arranged in an array; the raw material of the ceramic substrate layer is ceramic slurry, and the ceramic slurry comprises ceramic powder, a dispersing agent, a binder, a sintering aid and a solvent; the raw materials of the metal layer and the metal patch are metal slurry, and the metal slurry comprises metal powder, a dispersing agent, a binder and a solvent; the ceramic powder comprises at least one of aluminum oxide, aluminum nitride and silicon nitride; the metal powder comprises at least one of copper powder, aluminum powder, gold powder, silver powder and platinum powder. The reflection loss of the ceramic wave-absorbing material in the frequency range of 7.5-11.5 GHz is lower than-10dB, the minimum reflection loss is lower than-30dB, and the ceramic wave-absorbing material has high temperature resistance.
本发明涉及吸波陶瓷材料技术领域，具体涉及一种陶瓷吸波材料及其制备方法与应用。该陶瓷吸波材料包括相连接的陶瓷基底层和谐振单元层，谐振单元层为具有阵列排布的孔隙的金属层或阵列排布的金属贴片；陶瓷基底层的原料为陶瓷浆料，陶瓷浆料包括陶瓷粉体、分散剂、粘结剂、助烧剂和溶剂；金属层和所述金属贴片的原料为金属浆料，金属浆料包括金属粉体、分散剂、粘结剂和溶剂；陶瓷粉体包括氧化铝、氮化铝、氮化硅中的至少一种；金属粉体包括铜粉、铝粉、金粉、银粉和铂粉中的至少一种。陶瓷吸波材料在7.5‑11.5GHz的频率范围内反射损耗低于‑10dB，最小反射损耗低于‑30dB，同时具备耐高温性能。
Ceramic wave-absorbing material as well as preparation method and application thereof
一种陶瓷吸波材料及其制备方法与应用
ZENG TAO (author) / YANG YIPENG (author)
2022-12-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
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