시멘트; 전자파; 차폐; 차폐성능; 구리 분말; 아크 금속용사 피막; cement; electro-magnetic wave; shielding; shielding effectiveness; copper powder; arc thermal metal film
2017년 춘계학술발표대회 논문집, v. 17, No. 1, Page. 124-125
In this study, the shielding effectiveness of the Zn-Al arc thermal metal film coated cement-mortar mixed with
copper powder by reflection, absorption, multi-reflection loss in 2.25~2.65 GHz was reviewed. By enhancing the mixing
ratio of copper powder, the shielding effectiveness by absorption and multi-reflection loss was increased, but shielding
rate(%) based on 80 dB showed below 20%. The Zn-Al arc thermal metal film coated on specimen, the shielding rate
increased 3.5 times by reflection loss.