한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제23권3호
  • /
  • Pages.78-86
  • /
  • 1986
  • /
  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

육방정 페라이트의 고용성 및 단결정 육성 연구

Crystal Growth and Solid Solution of Hexagonal Ferrites

  • 강진기 (서울대학교 무기재료공학과) ;
  • 박병규 (서울대학교 무기재료공학과) ;
  • 정수진 (서울대학교 무기재료공학과)
  • 발행 : 1986.03.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

single crystals of various hexagonal ferrites were grown by a flux technique. For the growing experiment platinum crucibles of size 40 cc and a horizontal siliconit tube furnace were used. Charges consisted of the flux of BaO(SrO)/$B_2O_3$ and the composition of crystals in the system of BaO $(SrO)-Fe_2O_3-ZnO$. The BaO(SrO)/$B_2O_3$ molar ratio of the flux were varied from 1 to 3. Crystals up to 12.5mm in diameter were grown by slow cooling of melts from a maximum temperature of 1, 30$0^{\circ}C$or 1, 350$0^{\circ}C$ to 95$0^{\circ}C$ or 1, 00$0^{\circ}C$ The grown crystals exhibited a tabular hexagonal habits with very well developed ba-sal planes and narrow pyramidal faces of {1011} {1012} and {0001}. For the identification of the grown crystals X-ray diffraction studies were carried out. The effects of va-riations in flux ratio flux percentage and cooling rate on the quality of the grown crystals were studied. Cry-stal habits hillocks etch steps and growth spirals were observed by optical microscope. Magnetic properties of single crystals were measured.

키워드

참고문헌

  1. Pro. IRE v.48 Ferrimagnetic Linewidth of Single Crystal of Barium Ferrite(TEX)$(BaFe_12O_13)$(/TEX) I. Bady
  2. J. Am. Ceram. Soc. v.47 no.1 Growth and Poperties of Single Crystals of Hexagonal Ferrites R.O. Savage;A Tauber
  3. J. Appl. Phy. v.33 no.3 Resonance Poperties of Single Crystal Hexagonal Ferrites C.R. Buffler
  4. Yogyo-Kokai-Sht v.80 no.9 Growth of Strontium Ferrite Crystal from Molten Strontium Borates Y. Goto;K. Takahashi
  5. Science v.172 Crystallograghy of the Hexagonal Ferrites J.A. Kohn;D.W. Eckart;C.F. Cook
  6. Philips. Tech. Rev. v.13 no.7 Ferroxdure, A Class of Permanent Magnetic Materials J.J. Went;G.W. Rathenan;E.W. Gorter;G.W. Van. Oosterhout
  7. Philips. Tech. Rev. v.18 no.6 Ferroxplana, Hexagonal Ferromagnetic Iron oxide Compounds for Very High Frequencies G.H. Jonker;H.P.J. Wijn;P.B. Braun
  8. Nature v.170 no.4330 New Method of Melting Ferromagnetic Semiconductors;(TEX)$BaFe_13O_27$(/TEX) A New kind of Ferromagnetic Crystal with High Crystal Anisotropy H.P.J. Wijn
  9. J. Am. Ceram. Soc. v.43 no.3 Phase Diagram of the System BaO-Fe₂O₃ Y. Goto;T. Takada
  10. 結晶工學ハソドプック
  11. J. Am. Ceram. Soc. v.44 no.5 Growth of Barium Ferrite Single Crystals R.J. Gambino;F. Leonhard
  12. J. Am. Ceram. Soc. v.45 Growth of Yttrium-Iron Garnet from Molten Barium Borate R.C. Linares
  13. J. Appl. Phys. v.35 no.3 Improvement of the Ferromagnetic Resonance Linewidth of Single Crystal (TEX)$ZnY(Ba_2Zn_2Fe_12O_22)$(/TEX) by a New Growth Technique A. Tauber;S. Dixon;R.O. Savage
  14. J. Appl. Phys. v.39 no.2 Magnetic Properties of (TEX)$Ba Zn_2Fe_36O_60$(/TEX)Single Crystals A.J. Kerecmann;A. Tauber;T.R. Aucoin;R.O. Savage
  15. IEEE Tras. on Magnetics v.Mag-20 no.3 Crystallographic and Magnetic Investigation on W-Type-Hexaferrite Single Crystals in Solid Solution Series (TEX)$SrZn_{2-x} Co_xF_16O_27$(/TEX) H. Graetsch;F. Haberey;R. Leckebusch;M. Rosenberg;K. Sahl
  16. J. Crystal Growth v.64 Present Status of Flux Growth B.W. Wanklin
  17. JCPDS Powder diffraction
  18. The Growth of Single Crystals R.A. Laudise
  19. J. Appl. Phys. v.10 no.3 Temperature Dependance of Ms and K₁of (TEX)$BaFe_12O_19$(/TEX) and (TEX)$SrFe_12O_19$(/TEX) Single Crystals B.T. Shirk;W.R. Buessem
  20. J. Phys. Soc. of Japan v.22 no.2 Magnon Analysis of Ferromagnetic Resonance in a Planar Ferrite, ZnY M. Mita
  21. Proc. IEEE v.B104 no.216 F. Bertaut;F.F. Forat
  22. J. Appl. Phys. v.35 Reduction of Ferrimagnetic Resonance Linewidth and Critical Field in Single Crystal, ZnY by Mn-Substitation R.O. Savage;S. Dixon;A. Tauber