Zn1-xCexO纳米纤维的电纺制备及其红外雷达兼容隐身性能

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Abstract Single-phase Zn_1-xCe_xO (x=0.0,0.02,0.04,0.06 and 0.08) nanofibers were successfully fabricated via electrospinning technique in combination with subsequent heat treatment using zinc acetate, barium nitrate and polyvinylpyrrolidone as principal raw material. The thermal decomposition process of as-spun precursor nanofibers and the influences of Ce incorporation on the crystal structure, micromorphology, electrical conductivity, infrared emissivity and microwave-absorbing properties of the prepared nanofiber samples were investigated by means of thermogravi-metric and differential thermal analysis, X-ray diffraction, field emission scanning electron microscopy, 4-point probes resistivity measurement system, IR-2 infrared-emissivity analyzer and vector network analyzer. The results show that the Zn_1-xCe_xO nanofibers obtained by calcination at 600 ℃ for 2 h are all hexagonal wurtzite structure with fiber diameter of about 100 nm. With the increase of Ce³⁺ doping concentration, the infrared emissivity of the sample decreases first and then increases, which is consistent with the change in resistivity. When the doping concentration is 0.04, the lowest infrared emissivity is 0.78. Moreover, the microwave absorption properties of Zn_1-xCe_xO nanofibers was the best as the matching thickness is 1.5 mm. The minimum reflectivity can reach -33.6 dB at 12.3 GHz, and the frequency band with reflectivity less than -10 dB is 11.0—13.8 GHz. It is possible to make Zn_1-xCe_xO nanofibers used as a novel and promising infrared/radar compatible stealth material.

Key words： Zn_1-xCe_xO nanofibers electrospinning microwave absorption infrared emissivity

Published: 25 November 2019

CLC number:

TB34

Fund:This work was financially supported by the Innovation Foundation of the Army Engineering University of PLA (KYSZJQZL1910).

About author:: Xinkun Wang received his B.S. degree in applied chemistry from China University of Petroluem in 2017. He is currently pursuing his Master’s degree at the Shijiazhuang Campus of Army Engineering University. His research has focused on Nano functional material.
Fang Zhao, associate professor at the Shijiazhuang Campus of the Army Engineering University. He has served as a member of the National College Student Metallurgical Skills Competition Judging Committee and Supervisory Committee. The main research field is functional ceramic absorbing materials. As a key member of the project, he has participated in more than 10 scientific researches in the military including the National Natural Science Foundation of China and the Natural Science Foundation of Hebei Province. He has authorized 4 national and national defense invention patents and 5 utility model patents. He has published more than 20 papers in SCI and EI journals.

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Cite this article:

WANG Xinkun,ZHAO Fang,WANG Jianjiang. Infrared/Radar Compatible Stealth Properties of Zn_1-xCe_xO Nanofibers Preparedby Electrospinning[J]. Materials Reports, 2019, 33(Z2): 83-88.

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http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2019/V33/IZ2/83

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