Publication Date:
2011-10-08
Description:
Titanium dioxide (TiO 2 ) has attracted numerous attentions due to its high photocatalytic property. TiO 2 as photocatalyst is best to be coated over large area substrate (walls, windows, etc.). In this case, cold spray process is the most suitable technique, not only because its simplicity and efficiency for large area deposition, but also because it is a low temperature process that would retain the high photocatalytic anatase phase of TiO 2 in the coating. However, cold spraying of hard ceramic materials, such as TiO 2 , is widely known to be difficult. In this study, we are reporting a novel synthesis method of TiO 2 powder for cold spray via the hydrolysis of titanyl sulphate (TiOSO 4 ) with addition of ammonium sulphate ((NH 4 ) 2 SO 4 ). It is a relatively simple synthesis method that can obtain pure anatase structure even without high temperature treatment, although post treatments, such ...
Print ISSN:
1757-8981
Electronic ISSN:
1757-899X
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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