Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Characterization of Thermal Spray Coating Layers of Nano Crystalline TiO2 for Photocatalyst

광촉매용 나노 TiO2 용사코팅층 특성

  • Lee, Soo W. (Division of Matreials and Chemical Engineering, Sun Moon University) ;
  • Kim, Hak-Soo (Division of Matreials and Chemical Engineering, Sun Moon University) ;
  • Zeng, Yi (Division of Matreials and Chemical Engineering, Sun Moon University) ;
  • Hockey, Bernad (Ceramics Division, National institute of Standards and Technology)
  • 이수완 (선문대학교 재료화학공학부) ;
  • 김학수 (선문대학교 재료화학공학부) ;
  • ;
  • Published : 2002.10.01
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Abstract

Commercial nano crystalline $TiO_2$ powders were used to characterize photocatalyst, using thermal spray coating technique. The microstructure of coating layers were examined by SEM, FE-SEM and TEM. Also the cross sectional areas of TiO$_2$ coating layers were observed by SEM. The phases were analyzed by X-ray diffraction methed. Surface roughness and hardness were measured. It was found that phase transformation from anatase to rutile occurred, and the melted splats are all rutile, and unmeted nano particles were anatase. These unmelted anatase phase may enhance te play a role of photocatalyst.

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References

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