한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제17권3호
  • /
  • Pages.121-128
  • /
  • 1980
  • /
  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

Hexagonal Ferrite에 관한 연구 (IV) -혼합수산화물로부터 각종 Hexagonal Ferrite 의 생성과정에 관한 연구-

Studies on the Hexagonal Ferrite(IV) -The Formation Process of the Hexagonal Ferrites During Calcining the Mixture of $Ba(OH)_2$, $Zn(OH)_2$ and $6Fe(OH)_3$-

  • 발행 : 1980.03.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In order to obtain the fundamental data for the preparation of ferroxplana $Zn_2Y(Ba_2Zn_2Fe_{12}O_{22})$, which is useful for GHz-band communication, the optimum coprecipitation condition of $Zn(NO_3)_2-6FeCl_3$ in $NH_4OH$ solution and the formation process of the hexagonal ferrite were investigated. By the hot-petroleum-drying and calcining the coprecipitated hydroxide mixture $Zn(OH)_2 +Ba(OH)_2+ 6Fe(OH)_3$, the fine and uniform powder was obtained , whose phase composition and microstructure were studied by X.R.D. and electron microscope. In results, it was found that $Zn_2Y$, BaM and $Zn_2W$ were the representative phases in calcined specimens whose activation energies of crystal growth were about 3, 8, 2.5, $5.4{\times}10^4$ J/mole , respectively. The sintered specimens would be appreciated as useful magnetic cores for the high frequency communication.

키워드

참고문헌

  1. Ferrites J.Smit;H.P.J. Wijn
  2. J. Appl. Phy v.36 no.3 Permanent Magnets and Super-Conductors, New-Substituted Hexagonal Ferrites D. Epstein;J.A. Kohn;D.W. Eckart
  3. Physica v.14 Dispersion and Absorption in Magnetic Ferrites at Frequencies above One Megacycle J.L. Snock
  4. Soviet Phys. Solid State v.10 no.11 Magnetostriction of $Zn_2Ba_2Fe_{12}O_{22}$ S.P. Kuntsevich;Yu.A. Mamalui;A.S. Mil'er
  5. 益山大學校 附設 臨海地域開發 硏究院 生産技術硏究所 硏究報告 v.18 ZnY$(Ba_2Zn_2Fe_{12}O_{22})$ 單結品의 磁歪 金泰玉
  6. Philips Tech.Rev. v.18 Ferroxplan, Hexagonal Ferromagnetic Iron-Oxide Compounds for Very High Frequences G.H. Jonker;H.P.J. Wijn;P.B. Braun
  7. Philips Rev. Rep v.12 The Crystal Structures of a New Group of Ferromagnetic Compounds P.B. Braun
  8. Philips Tech. Rev v.19 no.7;8 Crystal-Oriented Ferroxplana A.L. Stuijts;H.P.J. Wijn
  9. J. Appl Phys v.35 no.3 Improvement of the Ferromagnetic Resmance Line Width of Single Crystal ZnY by New Growth Technique A. Tauer;S. Dixon
  10. J. Amer. Cer. Soc v.47 no.1 Growth and Properties of Single Crystals of Hexagonal Ferrites R.O. Savage;A. Tauer
  11. lbid v.37 no.7 Growth. of Hexagonal Ferrite Crystal by a Modified Pulling Techniques T.R. Aucoin;R.O. Savage
  12. Thesis Magnetic Properties of some Ferroxplana Single Crystals J. Verweel
  13. Proc. of I.C.F. The Application of Ferroxplana Single Crystal to VTR Head T. Iwasawa;H. Abe
  14. lbid Crystal Growth of Hexagonal Ferrites and Its Magnetic Characteristic S. Shinoyama;Y Sucmune
  15. 日本電信電話 硏究所 硏究實用化報告 v.21 no.11 Growth and Magnetic Characteristics of ZnY Single Crystals S. Shinoyama
  16. Tokin Tech. Rev v.7 no.1 Development of Electromagnetic Wave Absorber by use of Y type Ferroxplana T. Yamamoto;M. Kikuchi;S. Otsuki
  17. J. Korean Cera.Soc v.13 no.3 Hexagonal Ferrite에 관한 연구(Ⅰ),Ferroxplana $Zn_{1-x} MnxY(Ba_2Zn_{2(1-x)}Mn_{2x}Fe_{12}O_{22})$의 磁性 金泰玉
  18. lbid v.13 no.4 Hexagonal Ferrite에 관한 연구(II),Ferroxplana $Co_{1-x}ZnxZ(Ba_2Co_{2(1-x)}\;Zn_{2x}\;Fe_{24}O_{41}$ Magnetostriction 金泰玉
  19. J. Korean Cerm. Soc v.16 no.2 Hexagonal ferrite에 관한 연구(III);공침법에 의한 Ferroxplana $ZnY(Ba_2Zn_2Fe_{12}O_{22})$ 合成과 그 磁性 金泰玉;辛德基
  20. J. Appl. Phys. v.36 Reduction of Ferrimagnetic Resonance Line Width and Critical Field in Single-Crystal ZnY by Mn Substitution R.O. Savage;S. Dixon Jr.;A Tauer
  21. Soviet Phys.-Solid State v.9 no.8 Magneto-Crystalline Anisotropy of Hexagonal Ferrite Single Crystal of the System Ba_2Co_xZn_{2-x}Fe_{12}O_{22}$ N.N. Agapova;T.M. Perekalia
  22. 理化學辭典(第3版) 岩波
  23. エレトロニク セラミクス v.3 炭酸 バリウム (BaCO₃) 湊敏夫;松本淸治