한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제24권2호
  • /
  • Pages.131-135
  • /
  • 2011
  • /
  • 1226-7945(pISSN)
  • /
  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지
DOI QR코드

DOI QR Code

밀 스케일을 사용한 Sr-페라이트의 특성에 미치는 산화제의 영향

Effects of Oxidant on the Properties of Sr-ferrites Using Mill Scale

  • 조태식 (경북대학교 나노소재공학부 신소재공학) ;
  • 최승덕 (포항산업과학연구원 재료공정연구소 원천소재연구본부)
  • 투고 : 2010.11.09
  • 심사 : 2011.01.04
  • 발행 : 2011.02.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

We have been studied the effects of oxidant on the properties of Sr-ferrite magnets using mill scale for motor. The small-added (0.5 wt%) $NaNO_3$ oxidant improved significantly the degree of oxidation and the grindability of mill scale, and then highly enhanced the magnetic properties of anisotropic Sr-ferrite sintered magnets; such as the remanent flux density from 3.55 to 3.80 kG, the intrinsic coercivity from 2.75 to 3.22 kOe, and the maximum energy product from 2.90 to 3.45 MGOe.

키워드

참고문헌

  1. Y. T. Chien, H. C. Pan, and Y. C. Ko, J. the American Ceramic Soc., 72, 1328 (1989). https://doi.org/10.1111/j.1151-2916.1989.tb07646.x
  2. Y. T. Chien and Y. C. Ko, J. Mater. Sci., 25, 1711 (1990). https://doi.org/10.1007/BF01045374
  3. D. M. Moon, C. S. Nam, S. H. Kim, and U. T. Lim, Kor. Pat. No. 10-1996-0165978.
  4. S. C. Teng, Y. T. Chien, and Y. C. Ko, J. Mater. Sci., 27, 2665 (1992). https://doi.org/10.1007/BF00540687
  5. S. O. Yoon, H. J. Lee, K. H. Yoon, and H. J. Jeung, Ferrite (Bando Co., Seoul, 1996) p. 148.
  6. Y. Cho, D. R. Son, and T. S. Kweon, Magnetic Materials (Books Hill, Seoul, 2005) p. 280.
  7. H. M. Kim, I. G. Kang, and J. I. Lee, Physics of Magnetic Materials (Beksan Co., Seoul, 2001) p. 341.
  8. C. G. Kim and G. Nam, Thoery and Application of Magnetic Materials, (CMG, Seoul, 2003) p.219.
  9. H. J. Kim, T. S. Cho, H. D. Nam, and C. J. Yang, J. KIEEME, 11, 931 (1998).
  10. T. S. Cho, H. J. Kim, S. D. Choi, H. D. Nam, and C. J. Yang, J. Kor. Inst. Resour. Recycl., 7, 43 (1998).
  11. J. Y. Lee, The Crystal Structure of Materials, 1st ed. (CMG, Seoul, 1999) p. 268.
  12. W. Y. Jeung, T. S. Cho, and T. J. Moon, J. Kor. Magn. Soc., 4, 219 (1994).
  13. B. D. Cullity, Introduction to Magnetic Materials (Addison-Wesley, Massachusetts, 1972) p. 207.