ELECTROMAGNETIC SHIELDING PROPERTIES OF AL2O3-SIC COMPOSITES
Hilalnur Seker, Suayb Yener, Cuma Bindal, Ali O. Kurt
Pages: 382-389
Published: 1 Jan 2013
Views: 57
Abstract: A work has been carried out on the electromagnetic shielding (EMS) properties of Al2O3-SiC composites. The commercial alumina having 5 μm particle size was used as a matrix material and SiC was used as second phase in three different size fractions (40-80, 80-125 and 125-250 μm) and different content (30% and 40% by weight) to form ceramic particle reinforced ceramic matrix composite. The powders were shaped in hexagonal form (diagonal length of 25 mm). They were pressed uniaxially and sintered in N2 atmosphere before measuring their electromagnetic shielding effectiveness (EMSE). EMSE was investigated using Agilent E5071C Network Analyzer in the frequency range of 12.4–18 GHz (Ku band). The thickness of all samples tested was kept constant. It was found that the shielding effectiveness of SiC-reinforced Al2O3 composite materials compared to pure alumina have a reasonable level. Increasing particle size of SiC has increased the shielding effectiveness of composite structure.
Keywords: composite materials, alumina, sic, electromagnetic shielding (ems), shielding effectiveness
Cite this article: Hilalnur Seker, Suayb Yener, Cuma Bindal, Ali O. Kurt. ELECTROMAGNETIC SHIELDING PROPERTIES OF AL2O3-SIC COMPOSITES. Journal of International Scientific Publications: Materials, Methods & Technologies 7, 382-389 (2013). https://www.scientific-publications.net/en/article/1003119/
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