The Korean Journal of Ceramics

The Korean Ceramic Society (한국세라믹학회)
권호 표지

Fabrication of $TiO_2-CeO_2$ Composite Membranes with Thermal Stability

  • Bae, Dong-Sik (Dept. of Inorg. Mater. Engineering, Hanyang University) ;
  • Han, Kyong-Sop (Div. of Ceramics, Kroea Institute of Science and Technology) ;
  • Park, Sang-Hael (Dept. of Inorg. Mater. Engineering, Hanyang University)
  • Published : 1995.12.01
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Abstract

Ceramic membranes of the supported $TiO_2-CeO_2$ were prepared by dip-coating method on an $\alpha-Al_2O_3$ porous substrate. The mean pore diameter of an alumina support was 0.125 um. The mean particle diameter of $TiO_2-CeO_2$ top layer varied with firing temperature and ranged from 20 to 85 nm. The thermal stability of the composite membranes was studied from their surface microstructure after calcination at $600-900^{\circ}C$. The supported $TiO_2-CeO_2$ composite membranes exhibited much higher heat resistance than the $TiO_2$ membrane.

Keywords

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