Synthesis of TiO2 powders with addition of (NH4)2SO4 for cold spray coating

In this work, a simple hydrolysis process has been employed to synthesize anatase TiO2 using titanyl sulphate; TiOSO4 with the addition of ammonium sulphate;( NH4)(2)SO4 as starting materials for cold spray process. SEM images revealed that higher mol addition of( NH4)(2)SO4 into the precursor promotes the formation of agglomerates of primary and secondary particles of TiO2 powder. However, there are no significant changes in terms of crystallinity as shown by XRD patterns. A preliminary study on coating deposition using cold spray showed that TiO2 powders can be deposited onto the ceramic tile substrate.