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ZnO-C/Al2SiO5 low-density high-loss complex-phase wave-absorbing ceramic and preparation method thereof
The invention discloses a ZnO-C/Al2SiO5 low-density high-loss complex-phase wave-absorbing ceramic and a preparation method of the ZnO-C/Al2SiO5 complex-phase wave-absorbing ceramic. According to the specific technical scheme, a porous Al2SiO5 ceramic fiber board is selected as a base material, a solution impregnation method is adopted to introduce a glucose-zinc acetate solution into the porous Al2SiO5 ceramic fiber board through a vacuum or pressure impregnation process, then conversion into ZnO and pyrolytic carbon is achieved through heat treatment, the interior of an Al2SiO5 ceramic base body is evenly filled with the two phases. The component proportion of the C phase and the ZnO phase can be adjusted and controlled by adjusting the proportion of glucose and zinc acetate in a solution, the required content of the ZnO-C wave-absorbing agent in a matrix is achieved through multiple times of impregnation, the microstructure and the crystallization degree of the ZnO phase and the C phase are adjusted and controlled through heat treatment, and the ZnO-C/Al2SiO5 low-density and high-loss complex-phase wave-absorbing ceramic is obtained. The whole preparation process is simple in step, short in period, easy to operate and good in repeatability.
本发明公开了一种ZnO‑C/Al2SiO5低密度高损耗复相吸波陶瓷及其制备方法。具体技术方案如下：选用多孔Al2SiO5陶瓷纤维板作为基体材料，采用溶液浸渍法，将葡萄糖、醋酸锌溶液通过真空或压力浸渍过程引入多孔Al2SiO5陶瓷纤维板中，经过热处理转化为ZnO和热解碳，两相均匀填充在Al2SiO5陶瓷基体内部，通过调节溶液中葡萄糖和醋酸锌的比例可调控C、ZnO两相的成分比例，经多次浸渍，ZnO‑C吸波剂在基体内达到所需含量，经热处理调控ZnO、C两相的显微结构和晶化程度，得到的ZnO‑C/Al2SiO5低密度、高损耗复相吸波陶瓷；本方法整个制备工艺步骤简单、周期短、易于操作、重复性好。
ZnO-C/Al2SiO5 low-density high-loss complex-phase wave-absorbing ceramic and preparation method thereof
The invention discloses a ZnO-C/Al2SiO5 low-density high-loss complex-phase wave-absorbing ceramic and a preparation method of the ZnO-C/Al2SiO5 complex-phase wave-absorbing ceramic. According to the specific technical scheme, a porous Al2SiO5 ceramic fiber board is selected as a base material, a solution impregnation method is adopted to introduce a glucose-zinc acetate solution into the porous Al2SiO5 ceramic fiber board through a vacuum or pressure impregnation process, then conversion into ZnO and pyrolytic carbon is achieved through heat treatment, the interior of an Al2SiO5 ceramic base body is evenly filled with the two phases. The component proportion of the C phase and the ZnO phase can be adjusted and controlled by adjusting the proportion of glucose and zinc acetate in a solution, the required content of the ZnO-C wave-absorbing agent in a matrix is achieved through multiple times of impregnation, the microstructure and the crystallization degree of the ZnO phase and the C phase are adjusted and controlled through heat treatment, and the ZnO-C/Al2SiO5 low-density and high-loss complex-phase wave-absorbing ceramic is obtained. The whole preparation process is simple in step, short in period, easy to operate and good in repeatability.
本发明公开了一种ZnO‑C/Al2SiO5低密度高损耗复相吸波陶瓷及其制备方法。具体技术方案如下：选用多孔Al2SiO5陶瓷纤维板作为基体材料，采用溶液浸渍法，将葡萄糖、醋酸锌溶液通过真空或压力浸渍过程引入多孔Al2SiO5陶瓷纤维板中，经过热处理转化为ZnO和热解碳，两相均匀填充在Al2SiO5陶瓷基体内部，通过调节溶液中葡萄糖和醋酸锌的比例可调控C、ZnO两相的成分比例，经多次浸渍，ZnO‑C吸波剂在基体内达到所需含量，经热处理调控ZnO、C两相的显微结构和晶化程度，得到的ZnO‑C/Al2SiO5低密度、高损耗复相吸波陶瓷；本方法整个制备工艺步骤简单、周期短、易于操作、重复性好。
ZnO-C/Al2SiO5 low-density high-loss complex-phase wave-absorbing ceramic and preparation method thereof
一种ZnO-C/Al2SiO5低密度高损耗复相吸波陶瓷及其制备方法
KONG GE (Autor:in) / ZHANG-HE TIANQI (Autor:in) / QI JUN (Autor:in) / LUO SIHAN (Autor:in) / ZHANG SHUYU (Autor:in) / YANG JUN (Autor:in) / SHEN XUETAO (Autor:in) / XU ZHANWEI (Autor:in)
18.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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