Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지

Formulation and Magnetic properties of Sr-ferrite powders by Modified spray co-roasting

단순화된 분무열분해법을 이용한 Sr-ferrite 제조와 자기특성

  • 김효준 (영남대학교 대학원 전자공학과) ;
  • 조태식 (포항공과대학교 재료금속공학과) ;
  • 남효덕 (영남대학교 전기전자공학부) ;
  • 양충진 (포항산업과학연구원 전자기 연구팀)
  • Published : 1998.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

Preparation of hexagonal strontium-ferrite by modified spray co-roasting(MSC:H) which is expected to shorkn the length of the process and to elevate the magnetic properties of hard ferrite was studied. We prapared $Fe_2O_3/SrCO_3$ mixture powders by MSCR after stirring ionized $FeCI_2$ in distilled water with solid state $SrCO_3$. And then calcined the mixture powders up to $1150^{\circ}C$ for Sr-ferrite powders It is possible to prepare hexaferrite powders with high saturation magnetization (Ms > 69 emu/g) , coercivity (Hc > 4000 Oe) The nlagnetic values of saturation magnetization iire higher than those achieved by the conventional technique.

Keywords