| WANG Hai-yan,ZHANG Cui-xin,YU Sheng-xue,CHEN Yan,ZHANG Yong-sheng.Microwave Absorbing Properties of the Electroless Nickel-phosphorus Deposited on the Hollow Microspheres[J],39(6):63-65,74 |
| Microwave Absorbing Properties of the Electroless Nickel-phosphorus Deposited on the Hollow Microspheres |
| Received:August 14, 2010 Revised:December 10, 2010 |
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| DOI： |
| KeyWord:hollow microspheres electroless nickel plating Ni-P amorphous alloy microwave absorbing properties |
| Author | Institution |
| WANG Hai-yan |
Yanshan University, Qinhuangdao , China |
| ZHANG Cui-xin |
Yanshan University, Qinhuangdao , China |
| YU Sheng-xue |
Yanshan University, Qinhuangdao , China |
| CHEN Yan |
Yanshan University, Qinhuangdao , China |
| ZHANG Yong-sheng |
Aerospace Research Institute of Materials& Processing Technology, Beijing , China |
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| Abstract: |
| Nickel-phosphorus amorphous coating was deposited on the hollow microspheres with the average diameter of 2μm by means of electroless plating. The electromagnetic performance and reflectivity were measured in order to study the microwave absorbing properties of the material. The results show that the coercivity of the electrolessed nickel-phosphorus hollow microspheres reaches 343.08 Oe,and the modified hollow microspheres belong electromagnetic loss materials. Absorbing materials made of the modified hollow microspheres are prepared, the minimum reflectivity of the absorbing coating with the thickness of 3 mm reaches- 20.81 dB at 4.32 GHz;The reflectivity of the coating with the thickness of 1.5 mm is less than- 10 dB between 8.56 GHz and 10.08 GHz. |
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