Fan Yong, Zhang Ling, Volski Vladimir, Vandenbosch Guy A E, Blanpain Bart, Guo Muxing
Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44 us 2450, B-3001, Heverlee, Belgium.
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aobaku, Sendai, 980-8577, Japan.
Sci Rep. 2017 Nov 13;7(1):15368. doi: 10.1038/s41598-017-15779-7.
Electromagnetic interference (EMI) shielding receives attention due to the increasing abundance of electronics. The Cement based material can obtain EMI shielding properties through the use of appropriate "fillers" such as carbon, metal, and ferrite. As the most important by-product of stainless steelmaking operations, through the metal droplets and ferrite that it contains, stainless-steel dust can be considered as a potential filler for EMI shielding applications. We have therefore utilized stainless-steel dust as an admixture for the synthesis of cement-based EMI shielding composites and show that it raises the EMI shielding effectiveness. In particular, a 45 mass pct of stainless-steel dust mixture of 5 mm thickness results in the enhancement of EMI shielding effectiveness to 6-9 dB as tested in the frequency range of 500 MHz-1.5 GHz.
由于电子产品日益普及，电磁干扰（EMI）屏蔽受到关注。水泥基材料可通过使用碳、金属和铁氧体等合适的“填料”来获得EMI屏蔽性能。作为不锈钢制造过程中最重要的副产品，通过其所含的金属液滴和铁氧体，不锈钢粉尘可被视为EMI屏蔽应用的潜在填料。因此，我们利用不锈钢粉尘作为外加剂来合成水泥基EMI屏蔽复合材料，并表明它提高了EMI屏蔽效能。特别是，在500 MHz至1.5 GHz频率范围内测试时，45质量百分比的不锈钢粉尘混合物（厚度为5毫米）可将EMI屏蔽效能提高到6至9分贝。
