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Study of surface modification and infrared-radar stealth performance of La0.7Ba0.3MnO3 powder
Author(s): Jiawei Liu; Jianjiang Wang; Qiang Yuan; Xianghong Yao; Yue Hao
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Paper Abstract

In order to further improve the infrared / radar compatible stealth performance of La0.7Ba0.3MnO3 powder. The perovskite type La0.7Ba0.3MnO3 powder were prepared by sol-gel, and its surface was metallized by electroless plating. The phase structure, surface morphology and composition of samples before and after electroless plating were characterized by means of XRD, SEM. IR-2 infrared emissivity tester and vector network analyzer were used to analyze the infrared emission and radar absorbing performance before and after electroless plating. The results show that, the infrared emissivity of the samples in the infrared range of 8~14 μm and 3~5μwas significantly reduced by electroless plating. The infrared emissivity in 8~14 μm decreased from 0.818 to 0.604 after plating, in the 3~5 μm decreased from 0.768 to 0.513, and the reduction rate was about 0.2. The peak of the radar wave absorption of the electroless Ni-P alloy layer is lower than that before plating. The frequency of the maximum absorption peak is shifted from low frequency to 8.2 GHz before plating, The effective absorption bandwidth is from 3 GHz before plating to 4.5 GHz after plating. The surface modification of La0.7Ba0.3MnO3 powder by electroless plating can double the infrared and radar wave stealth performance and provide a new idea for the research of infrared / radar compatible stealth material.

Paper Details

Date Published: 18 December 2019
PDF: 8 pages
Proc. SPIE 11333, AOPC 2019: Advanced Laser Materials and Laser Technology, 113330E (18 December 2019); doi: 10.1117/12.2541973
Show Author Affiliations
Jiawei Liu, China Aerodynamics Research and Development Ctr. (China)
Jianjiang Wang, Army Engineering Univ. (China)
Qiang Yuan, China Aerodynamics Research and Development Ctr. (China)
Xianghong Yao, China Aerodynamics Research and Development Ctr. (China)
Yue Hao, China Aerodynamics Research and Development Ctr. (China)


Published in SPIE Proceedings Vol. 11333:
AOPC 2019: Advanced Laser Materials and Laser Technology
Pu Zhou; Jian Zhang; Wenxue Li; Shibin Jiang; Takunori Taira, Editor(s)

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