Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403


공학

한국표면공학회지 (39권5호 210-214)

ELF Shielding Effectiveness of Ni Electrodeposited Steel Sheets

Ni도금강판의 극저주파 차폐 특성

김찬욱;김병문;석한길;
Kim, C.W.;Kim, B.M.;Suk, H.G.;

포항산업과학연구원 재료공정연구센타;경북 전략산업기획단 평가기획실;강원대학교 재료금속공학과;
Material Processing Center, Research Institute of Industrial Science & Technology (RIST);Evaluation & Planning Group, Gyeongbuk Regional Innovation Agency;Department of Materials & Metallurgical Engineering, Kangwon National University;

Abstract

In order to enhance the electromagnetic shielding efficiency of commercialized cold-rolled steel sheets, we have prepared Ni deposited steel sheets by the electrodeposition method. Surface alloying with Ni and Fe was achieved on a steel sheet by diffusion annealing process. Shielding effectiveness measurement results showed that annealed Ni electrodeposited steel sheets enhanced the shielding efficiency up to about 3 dB in the frequency range of 20 to 200Hz, compared with that of non-deposited steel sheets.

Keywords

Electromagnetic shielding;Shielding effectiveness;Electrodeposited steel sheets;