Abstract
Control of the microstructure of TiO 2 coatings through preparation methods significantly influences the coating performance. In this study, a vacuum cold-spray process, as a new coating technology, is used to deposit nanocrystalline TiO 2, coatings on conducting glass and stainless steel substrates. TiO 2, deposits were formed using two types of nanocrystalline TiO 2 powders with mean particle diameters of 200 and 25 nm. Coating microstructures were characterized by scanning electron microscopy and x-ray diffraction analysis. Results demonstrate that a thick nanocrystalline TiO 2 coating can be deposited by the vacuum cold-spray process. The coating was found to consist of particles stacked as agglomerates that build up to several hundred nanometers. The coating also presents a mesoporous microstructure that could be effective in such applications as photocatalytic degradation and dye-sensitized solar cells.
| Original language | English |
|---|---|
| Pages (from-to) | 513-517 |
| Number of pages | 5 |
| Journal | Journal of Thermal Spray Technology |
| Volume | 15 |
| Issue number | 4 |
| DOIs | |
| State | Published - Dec 2006 |
Keywords
- Ceramic coating
- Mesoporous structure
- Nanocrystalline material
- TiO
- Vacuum cold spray