Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Fabrication and Characterization of Alumina Sol for Coating by a Method of the Mechanical Milling

기계적 분쇄방법을 통한 코팅용 알루미나 졸의 제조 및 평가

  • Yu, Jeong-Hwan (Department of Materials Science and Engineering, Kyungnam University) ;
  • Jung, Seung-Hwa (Department of Materials Science and Engineering, Kyungnam University) ;
  • Jo, Bum-Rae (Department of Materials Science and Engineering, Keimyung University) ;
  • Hong, Gyung-Pyo (Component Materials Research institute, Cenotec Co. Ltd., Kyungnam University) ;
  • Mun, Jong-Soo (Department of Materials Science and Engineering, Kyungnam University) ;
  • Kang, Jong-Bong (Department of Materials Science and Engineering, Kyungnam University)
  • 유정환 (경남대학교 대학원 재료공학과) ;
  • 정승화 (경남대학교 대학원 재료공학과) ;
  • 조범래 (계명대학교 재료공학과) ;
  • 홍경표 ((주) 쎄노텍 부설 부품소재개발 연구소) ;
  • 문종수 (경남대학교 대학원 재료공학과) ;
  • 강종봉 (경남대학교 대학원 재료공학과)
  • Published : 2008.08.31
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Abstract

$Al_2O_3$ sol with long-term stability was prepared by mechanical milling. Thin films were evaluated and created for use as coating materials. The particle size of the manufactured sol was 98 nm when 2 wt% of nitric acid was added. This indicates that the viscosity of the sol is 12 cps and that it has long-term stability. The thickness of the thin films, which varied from 100 nm to 500 nm, could be managed by adjusting the draw rate and the amount of an organic additive. A thin film heated to $500^{\circ}C$ indicated a hydrophilic property against water and excellent permeability against a visible ray.

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References

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