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
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).
. [J]. 中国物理快报, 2014, 31(09): 97701-097701.
LI Rong, ZHOU Wan-Cheng, QING Yu-Chang. Preparation of Ni-B Coating on Carbonyl Iron and Its Microwave Absorption Properties in the X Band. Chin. Phys. Lett., 2014, 31(09): 97701-097701.
2014, Vol. 31 
