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In-situ construction of Cr2O3@ATO hybrid pigment towards synergetic enhancement of visible light-infrared-radar compatible stealth
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2023-05-06 , DOI: 10.1016/j.jcis.2023.04.175
Xia Chai 1 , Dongmei Zhu 1 , Yin Liu 1 , Yuchang Qing 1 , Fa Luo 1 , Zhibin Huang 2 , Peng Li 2 , Qiang Chen 1
Affiliation  

Multiband compatible stealth engineering with controllable visible light-infrared (VIS-IR) features and radar wave absorption is urgently needed to improve the survivability of advanced military equipment. Cr2O3 has good visible light stealth performance under green background, but it is lack of IR and radar multi-band stealth properties. Herein, a core-shelled Cr2O3@stannic antimony oxide (ATO) structure was developed to enhance the IR-radar compatible stealth properties of Cr2O3 by in-situ precipitation method, concurrently maintaining its visible light stealth property. The morphology, conductivity, and infrared stealth properties of the Cr2O3@ATO hybrids were influenced by the calcination temperature, and the IR and radar stealth performance were tunable by ATO content. The lowest emissivity of Cr2O3@ATO pigments is 0.852, reduced by 10% than pure Cr2O3. The Cr2O3@ATO filled silicone resin coatings possessed good thermal stability and IR stealth stability. Benefiting from the enhanced interfacial polarization and conductive loss, the Cr2O3@ATO exhibited an effective absorption bandwidth of 2 GHz in the X band, with respect to pure Cr2O3 without radar absorption property. The Cr2O3@ATO structure opens an avenue for advanced VIS-IR-Radar compatible stealth materials.



中文翻译:

原位构建 Cr2O3@ATO 杂化颜料协同增强可见光-红外-雷达兼容隐身

迫切需要具有可控可见光-红外(VIS-IR)特征和雷达波吸收的多波段兼容隐身工程,以提高先进军事装备的生存能力。Cr 2 O 3在绿色背景下具有良好的可见光隐身性能,但缺乏红外和雷达多波段隐身性能。在此,开发了核壳型Cr 2 O 3 @氧化锡锑(ATO)结构,通过原位沉淀法增强了Cr 2 O 3的红外雷达兼容隐身性能,同时保持其可见光隐身性能。Cr 2 O的形貌、电导率和红外隐身性能3 @ATO 杂化物受煅烧温度的影响,红外和雷达隐身性能可通过 ATO 含量进行调节。Cr 2 O 3 @ATO颜料的最低发射率为0.852,比纯Cr 2 O 3降低10% 。Cr 2 O 3 @ATO填充的有机硅树脂涂层具有良好的热稳定性和红外隐身稳定性。得益于增强的界面极化和传导损耗,相对于没有雷达吸收特性的纯 Cr 2 O 3 ,Cr 2 O 3 @ATO 在 X 波段表现出 2 GHz 的有效吸收带宽。2O 3 @ATO 结构为先进的 VIS-IR-Radar 兼容隐形材料开辟了道路。

更新日期:2023-05-10
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