Journal Published Online: 10 November 2020
Volume 9, Issue 1

Wettability Studies of Titanium and Its Oxide-Based Coatings

CODEN: MPCACD

Abstract

Thin films of titanium oxide were deposited on the substrate of corning glass using radio frequency magnetron sputtering, and the films were then annealed at temperature of 500°C, 650°C, and 800°C for 1 h. For the purpose of film characterization, X-ray diffraction technique was used; for the study of surface topography and wettability, atomic force microscope and commercial goniometer were used; and for the study of optical properties, ultraviolet visual light spectra was used. The measurement of wettability was performed after the storage of samples for significant time in a dark room and after sunlight exposure for 5 h in ambient conditions. It was observed that the unannealed sample showed an amorphous phase, whereas samples annealed from 500°C to 650°C showed formation of anatase. At 650°C, the rutile phase appeared, and at 800°C, the conversion of anatase phase to rutile phase was observed. Titanium oxide films, after storage in a dark room, showed a hydrophobic nature, but after white light exposure for 5 h, superhydrophilic properties with a contact angle up to 4° was obtained. The results showed that with an increase in anatase phase, hydrophilicity was enhanced, but with the conversion to rutile phase, a significant increment in the values of the contact angle was observed from 4° to 27°. The films showed a highly transparent surface with around 85 % transparency.

Author Information

Vyas, Vandan V.
CHAMOS Matrusanstha Department of Mechanical Engineering, Chandubhai S. Patel Institute of Technology, Charotar University of Science and Technology, Changa, India
Chauhan, Kamlesh V.
CHAMOS Matrusanstha Department of Mechanical Engineering, Chandubhai S. Patel Institute of Technology, Charotar University of Science and Technology, Changa, India
Pages: 8
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Stock #: MPC20190258
ISSN: 2379-1365
DOI: 10.1520/MPC20190258