Transmission characteristics of a composite made with ground granulated blast furnace slag

IEICE Electronics Express

Yi-Ru Jeong³  Jong-Gwan Yook³  Ic-Pyo Hong¹  Heoung-Jae Chun² 

[1] Rradio Science Engineering, Kongju National University;School of Mechanical Engineering, Yonsei University;School of Electrical and Electronics Engineering, Yonsei University

关键词: ground granulated blast furnace slag (GGBFS);    transmission characteristics;    shielding material;    composite materials;   

DOI  :  10.1587/elex.10.20130855

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)In this paper, we propose a new composite shielding material using ground granulated blast furnace slag (GGBFS), a by-product of iron refining. To investigate the feasibility of GGBFS inclusion in shielding material, we fabricated a composite GGBFS material and measured its electromagnetic transmission characteristics. First, we measured the permittivity and permeability of GGBFS itself using a 2-port coaxial cable system. After fabrication of the proposed composite GGBFS material, the permittivity of the proposed structure was measured using the resonance cavity method to obtain the basic electromagnetic material properties. When GGBFS is added to an epoxy resin composite material, permittivity increases by approximately 1.5. To show its feasibility as a shielding material, we fabricated planar samples and measured the electromagnetic transmission characteristics between 6 and 12GHz using the free space measurement method. The results show that the sample's shielding level is approximately 1.5dB in the frequency range between 6 and 12GHz for a GGBFS content of 30% and thickness of 2mm. We also obtained a 3dB (50% of incident power) shielding level at 8.5GHz for a 5mm thick sample. The new proposed material in this paper capable for use in many shielding applications and provide a new opportunity for recycling industrial waste.

【 授权许可】

Unknown