| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Preparation of Ni-B Coating on Carbonyl Iron and Its Microwave Absorption Properties in the X Band |
| LI Rong1,2**, ZHOU Wan-Cheng1, QING Yu-Chang1 |
1State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072
2No. 603 Faculty, Xi'an Institute of High Technology, Xi'an 710025
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| Cite this article: |
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LI Rong, ZHOU Wan-Cheng, QING Yu-Chang 2014 Chin. Phys. Lett. 31 097701 |
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Abstract Ni?B coated carbonyl iron particles (CI@Ni?B) are prepared by the electroless plating technique. The structure, morphology, and antioxidant properties of the CI@Ni-B particles are analyzed. The results demonstrate that the CI particles have been coated with intact spherical-shell Ni-B coating, indicating the core-shell structure of CI@Ni-B particles, and the Ni-B coating can prevent the further oxidation of the CI particles. Compared with the raw CI particles/paraffin coatings with the same coating thickness of 2.0 mm and particles content of 70%, the CI@Ni-B particles/paraffin coatings possess higher microwave absorption (the RL exceeding -10 dB is obtained in the whole X band (8.2–12.4 GHz) with minimal RL of -35.0 dB at 9.2 GHz).
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| PACS: |
77.84.Lf
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(Composite materials)
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78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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62.20.mm
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(Fracture)
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81.16.Be
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(Chemical synthesis methods)
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