Comparison of the Physicochemical Properties of Carboxylic and Phosphonic Acid Self-Assembled Monolayers Created on a Ti-6Al-4V Substrate
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Data
2020Autor
Cichomski, Michal
Prowizor, Milena
Kowalczyk, Dorota Anna
Sikora, Andrzej
Batory, Damian
Dudek, Mariusz
Metadata
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This study compared the tribological properties in nano- and millinewton load ranges
of Ti-6Al-4V surfaces that were modified using self-assembled monolayers (SAMs) of carboxylic
and phosphonic acids. The effectiveness of the creation of SAMs with the use of the liquid phase
deposition (LPD) technique was monitored by the contact angle measurement, the surface free
energy (SFE) calculation, X-ray photoelectron spectroscopy (XPS), and Fourier-transform infrared
spectroscopy (FTIR) measurements. The obtained results indicated that more stable and well-ordered
layers, which were characterized by the lowest values of the coefficient of friction, adhesion, and wear
rate, were obtained using phosphonic acid as a surface modifier. Based on the obtained results, it was
found that the Ti-6Al-4V alloy modified by phosphonic acid would be the most advantageous for
practical applications, especially in micro- and nanoelectromechanical systems (MEMS/NEMS).
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