Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
권호 표지
DOI QR코드

DOI QR Code

Synthesis of Ultra Eine MnxZn1-xFe2O4(x = 0.69~0.74) Powder and Its Magnetic Properties

초미립 MnxZn1-xFe2O4(x = 0.69~0.74)분말의 제조 및 자기적 성질

  • Kwak, Jae-Eun (Department of Metallurgy and Materials Engineering, Hanyang University) ;
  • Lee, Wan-Jae (Department of Metallurgy and Materials Engineering, Hanyang University)
  • 곽재은 (한양대학교 공학대학 금속재료공학과) ;
  • 이완재 (한양대학교 공학대학 금속재료공학과)
  • Published : 2002.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

$MnxZn_{1-x}Fe_2O_4$ (x=0.69~0.74) powders synthesized by the thermal decomposition of organic acid salts. The obtained powders were uniform in composition and ultra-fine particle with about 400 nm. The amount of spinel phase of these powders was about 50% in X-ray diffraction patterns. The calcination of powder was carried out at $900^{\circ}C$ for 2 hours in air. After the powders were calcined. the mean size of powder was about 500 nm and the amount of spinel phase was increased over about 65%. The maximum amount of spinel phase was about 75% in the specimen of X=0.72. The magnetic properties of calcined $Mn_{0.72}Zn_{0.28}Fe_2O_4$ powders were the best among the different among the different compositions.

Keywords

References

  1. Introduction to Magnetic Materials B. D. Cullity
  2. Electronic Ceramics Lionel M. Levinson
  3. J. Japan Inst. Metals v.56 T. Asaka;Y. Okazawa;K. Tachikawa https://doi.org/10.2320/jinstmet1952.56.6_715
  4. J. Japan Inst. Metals v.56 T. Asaka;Y. Shiomi;K. Tachikawa https://doi.org/10.2320/jinstmet1952.56.6_722
  5. 한국분말야금학회지 v.2 정재우;이완재
  6. IEEE; Proceedings of The Sixth International Conference on Ferrites (ICF 6) D. Autissier;L. Autissiuer
  7. J. Am. Ceram. Soc. v.75 K. Sujata;T. O. Mason https://doi.org/10.1111/j.1151-2916.1992.tb07842.x
  8. Proceedings of The IEEE v.74 no.1 M. N. Afsar;J. R. Birch;R. N. Clarke https://doi.org/10.1109/PROC.1986.13432