BaTiO₃ 분말과 분산제 첨가에 따른 Fe계 나노결정 P/M시트의 전자파흡수 특성변화
The Characteristic Changes of Electromagnetic Wave Absorption in Fe-based Nanocrystalline P/M Sheet by the Additions of BaTiO₃ Powder and Dispersant
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Abstract
The amorphous Fe73Si16B7Nb3Cu1(at%) alloy strip was pulverized using a jet mill and an attrition mill to get flake-shaped powder. The flake powder was mixed with dielectric BaTiO₃ powder and its dispersant to increase the permittivity. The powders covered with dielectric powders and its dispersant were mixed with a binder and a solvent and then tape-cast to form sheets. The absorbing properties of the sheets were measured to investigate the roles of the dielectric powder and its dispersant. The results showed that the addition of BaTiO₃ powders and its dispersant improved the absorbing properties of the sheets noticeably. The powder sheet mixed with 5 wt% of BaTiO₃ powder and 1 wt% of dispersant showed the best electromagnetic wave absorption rate because of the increase of the permittivity and the electrical resistance.
참고문헌 (10)
- David M. Pozar, "Microwave Engineering", pp.4~ (1990), Addison- Wesley
- J. Y. Lee, "1995 IEEE international Symposium on EMC", pp.543~ (1995), Atlanta
- J. G. Lee, "Study of test techniques for the Electromagnetic wave introspection" (1992), KIA
- 구숙경, "Fe계 나노결정립 분말의 표면 산화에 따른 전자파 흡수특성", 한국분말야금학회지, 14(5), pp.303~308 (2007), 한국분말야금학회
- 우수정, "Al2O3 첨가에 따른 Fe계 나노결정립 P", M시트의 전자파 흡수특성, 2007, pp.14(4), 265~271[DOI]
- Y. Yoshizawa, , J.Appl. Phy, 64, pp.10~ (1988)
- G. Herzer, , IEEE Trans. Mag, 26, pp.1379~ (1990)
- J. W. Jung, "Understanding of the Electromagnetic wave absorption", DBpia, 9, pp.40~44 (1998)
- D. I. Kim, "Engineering of the Electromagnetic wave absorption", pp.297~ (2006), Dae Yong Sa
- J.-H. Yu, , J. Korean Powder Metallurgy Institute, 12, pp.387~392 (2005)