Details

Autor(en) / Beteiligte

• Kośla, K.
• Grobelny, J.
• Cichomski, M.

Titel

Preparation and frictional investigation of the two-components silanes deposited on alumina surface

Ist Teil von

• Applied surface science, 2014-09, Vol.314, p.500-504

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •The two-component silane films on the alumina surface were obtained by a combination of soft lithography and vapor phase deposition method.•The effectiveness of modification procedure was monitored by AFM topography images.•By using gas phase deposition method succeeded in obtaining a good reproduction of pattern.•Silane films with low surface free energy and coefficient of friction values were obtained.•The frictional performance in milli-Newton load range of one- and two-component films was investigated by microtribometry. Functionalization and pattering technique that permits two-component pattern-specific modification of alumina surface with silanes molecules are reported. The method relies on a two-component molecular system that simultaneously decreases coefficient of friction of the alumina surface and provides uniform chemical functionality suitable for further elaboration. Pattern/two-component modification is achieved via gas-phase deposition of the silanes using polydimethylsiloxane stamp. The frictional behaviors of the two-component films of the silane molecules with different chain length covalently absorbed on alumina surfaces, were characterized by the ball-disk (microtribometer) tester. The surfaces of the substrate modified by two-component molecular films were examined by atomic force microscopy (AFM). The measured tribological results showed that the mixing of the fluoroalkylsilane and alkylsilane enhance the lubrication and decrease the friction compared to the one-component thin films.