Study on Electromagnetic Shielding Effectiveness of Nickel Fiber-Filled Cement
The cement-based composite shielding materials was prepared using portland cement and nickel fiber. The effects of dispersive manner, contents of nickel fiber, thickness of specimens on shielding properties and conductivity were studied in a frequency range of 100 KHz~1.5 GHz. With the contents of nickel fiber by ultrasonic dispersed at 5 vol.% and specimen’s thickness of 10 mm, the conductivity is 2.58×10-3 S•cm-1 and maximum shielding effectiveness is 47.8 dB, average shielding effectiveness reaches about 45.9 dB for cement-based composites.
G. X. Xiong et al., "Study on Electromagnetic Shielding Effectiveness of Nickel Fiber-Filled Cement", Advanced Materials Research, Vols. 168-170, pp. 997-1000, 2011