The effects of RF-sputtered TiO 2 top layer on pore structure of composite ceramic membranes

Autor: A. Samimi, F. Abdollahzadeh Davani, S. Khamseh
Rok vydání: 2014
Předmět:
Zdroj: Surface and Coatings Technology. 258:1256-1258
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2014.07.014
Popis: Composite ceramic membranes which consist of α-Al 2 O 3 as support layer and γ-Al 2 O 3 as intermediate layer are used as substrate. The technique of RF-sputtering has been used to deposit TiO 2 film as top layer on ceramic membranes in order to tailor composite membrane's pore size and antibacterial purposes. Scanning electron microscopy observation showed that the pore size of the ceramic membranes decreases with increasing the RF-sputtering power. The thickness of the deposited TiO 2 films increased with increasing the RF-sputtering power. It has been found that a dense and uniform TiO 2 film can be formed using RF-sputtering system whose thickness can be tuned by varying the RF-sputtering power.
Databáze: OpenAIRE