Preparation of Barium Ferrite Thin Film by Sol-Gel Method

졸겔법을 이용한 바륨페라이트 박막 제조

  • 변태봉 (포항산업과학연구원) ;
  • 조원덕 (부산대학교 무기재료공학과) ;
  • 김태옥 (부산대학교 무기재료공학과)
  • Published : 1997.01.01


Barium ferrite thin films on the thermal oxidized Si substrate were prepared by using sol-gel method (dip coating) from the sol of composition ratio of 5.25, designated by mole ratio 2Fe/Ba. The gelation process was largely divided into 4 step, and the sol prepared by reaction for 90 minutes at 8$0^{\circ}C$ was the suit-able for coating. Needle shaped particles formed on the coating layer were placed parallel to substrate and the inclination was increased with film thickness. The easy-direction of magnetization of needle shaped par-ticles was long-axis direction.


Sol-gel dip coating;Barium ferrite


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