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ZrB2/ZrC composite ceramic wave-absorbing material and preparation method thereof
The invention particularly relates to a ZrB2/ZrC composite ceramic wave-absorbing material and a preparation method thereof, and belongs to the field of wave-absorbing materials. The ZrB2 is mutually connected to form a space net structure; the outer wall of the ZrB2 is coated with granular ZrC crystals to form a rough surface. According to the method, ZrB2 is prepared by utilizing a polymer conversion method; the preparation method comprises the following steps: taking polymer converted ZrB2 as a matrix, dipping a ZrC liquid phase precursor, and curing after full dipping; and carrying out heat treatment on the cured sample to obtain the polymer converted ZrB2/ZrC composite material. The lowest reflection loss of the ZrB2/ZrC ceramic wave-absorbing material prepared by the invention reaches-64.64 dB, and the effective absorption bandwidth reaches 6.94 GHz when the thickness of the material is 4.33 mm.
本发明特别涉及一种ZrB2/ZrC复合陶瓷吸波材料及其制备方法，属于吸波材料领域，该材料包括ZrB2和ZrC；所述ZrB2相互连结形成空间网状结构；所述ZrB2外壁包覆颗粒状ZrC晶体，形成粗糙表面。本发明方法利用聚合物转化法制备出ZrB2；以聚合物转化ZrB2为基体，浸渍ZrC液相前驱体，充分浸渍后进行固化；将固化后的样品热处理，获得聚合物转化ZrB2/ZrC复合材料。本发明制备的ZrB2/ZrC陶瓷吸波材料最低反射损耗达到‑64.64dB，有效吸收带宽在材料厚度为4.33mm时达到6.94GHz。
ZrB2/ZrC composite ceramic wave-absorbing material and preparation method thereof
The invention particularly relates to a ZrB2/ZrC composite ceramic wave-absorbing material and a preparation method thereof, and belongs to the field of wave-absorbing materials. The ZrB2 is mutually connected to form a space net structure; the outer wall of the ZrB2 is coated with granular ZrC crystals to form a rough surface. According to the method, ZrB2 is prepared by utilizing a polymer conversion method; the preparation method comprises the following steps: taking polymer converted ZrB2 as a matrix, dipping a ZrC liquid phase precursor, and curing after full dipping; and carrying out heat treatment on the cured sample to obtain the polymer converted ZrB2/ZrC composite material. The lowest reflection loss of the ZrB2/ZrC ceramic wave-absorbing material prepared by the invention reaches-64.64 dB, and the effective absorption bandwidth reaches 6.94 GHz when the thickness of the material is 4.33 mm.
本发明特别涉及一种ZrB2/ZrC复合陶瓷吸波材料及其制备方法，属于吸波材料领域，该材料包括ZrB2和ZrC；所述ZrB2相互连结形成空间网状结构；所述ZrB2外壁包覆颗粒状ZrC晶体，形成粗糙表面。本发明方法利用聚合物转化法制备出ZrB2；以聚合物转化ZrB2为基体，浸渍ZrC液相前驱体，充分浸渍后进行固化；将固化后的样品热处理，获得聚合物转化ZrB2/ZrC复合材料。本发明制备的ZrB2/ZrC陶瓷吸波材料最低反射损耗达到‑64.64dB，有效吸收带宽在材料厚度为4.33mm时达到6.94GHz。
ZrB2/ZrC composite ceramic wave-absorbing material and preparation method thereof
一种ZrB2/ZrC复合陶瓷吸波材料及其制备方法
JIA YUJUN (Autor:in) / WEI JUNRU (Autor:in) / LIU SIJIAN (Autor:in) / DAI MENGYU (Autor:in)
13.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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