Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Synthesis of ${\alpha}-Fe_2O_3$ Powders by the Polymerized Complex Method

Polymerized Complex법에 의한 ${\alpha}-Fe_2O_3$ 분말의 제조

  • 강경원 (한양대학교 세라믹공학과) ;
  • 정용선 (한양대학교 세라믹공정연구센터) ;
  • 오근호 (한양대학교 세라믹공정연구센터)
  • Published : 1998.03.01
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Abstract

Iron complexes were prepared using ferric nitrate and ethylene glycol as starting materials and the ul-trafine ${\alpha}-Fe_2O_3$ particles with the sizes smaller than 200nm were obtained by the pyrolysis of iron com-plexes at over $350^{\circ}C$ In addition the decomposition mechanism of the synthesized iron complexes was in-vestigated by differential scanning calorimeter X-ray diffractometer and IR spectrometer. Transmission electron microscopy and BET method were performed to analyze the effects of ferric nitrate contents and reaction temperatures on the size and shape of the particles.

출발원료인 ferric nitrate와 ethylene glycol를 사용하여 iron complex를 제조하였으며 이를 $350^{\circ}C$ 이상의 온도에서 열처리하여 200nm 이하의 미세한 입자 크기를 갖는 ${\alpha}-Fe_2O_3$ 분말을 얻었다. 또한 열분석 X-선 회절 분석 및 적외선 분광 분석을 통하여 제조된 iron complex의 분해 mechanism에 대하여 조사하였고, 출발원료의 조성비 및 반응온도에 따른 입자 크기 및 형상의 변화 양상을 전자현미경 분석과 비표면적 분석을 통하여 조사하였다.

Keywords

References

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