期刊
MATERIALS
卷 10, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/ma10101155
关键词
electromagnetic pulse (EMP); shielding effectiveness (SE); arc thermal metal spraying method; EMP shielding coating thickness
类别
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT, and Future Planning [2015R1A5A1037548]
An electromagnetic pulse (EMP) explodes in real-time and causes critical damage within a short period to not only electric devices, but also to national infrastructures. In terms of EMP shielding rooms, metal plate has been used due to its excellent shielding effectiveness (SE). However, it has difficulties in manufacturing, as the fabrication of welded parts of metal plates and the cost of construction are non-economical. The objective of this study is to examine the applicability of the arc thermal metal spraying (ATMS) method as a new EMP shielding method to replace metal plate. The experimental parameters, metal types (Cu, Zn-Al), and coating thickness (100-700 m) used for the ATMS method were considered. As an experiment, a SE test against an EMP in the range of 10(3) to 10(10) Hz was conducted. Results showed that the ATMS coating with Zn-Al had similar shielding performance in comparison with metal plate. In conclusion, the ATMS method is judged to have a high possibility of actual application as a new EMP shielding material.
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