Properties of nano structured Ag-TiO{sub 2} composite coating on stainless steel using RF sputtering method

Journal Article · Mon Jul 02 00:00:00 EDT 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4732471· OSTI ID:22069034

Bakar, S Abu; Jamuna-Thevi, K; Abu, N; Mohd Toff, M R ^[1]

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1. Advanced Materials Research Centre (AMREC), SIRIM Berhad, Lot 34, Jalan Hi- Tech 2/3, Kulim Hi-Tech Park, 09000 Kulim (Malaysia)

RF Sputtering system is one of the Physical Vapour Deposition (PVD) methods that have been widely used to produce hard coating. This technique is used to deposit thin layers of metallic substrates such as stainless steel (SS). From this process, a good adhesiveness and wear resistance coating can be produced for biomedical applications. In this study, RF sputtering method was used to deposit TiO{sub 2}-Ag composite coatings via various deposition parameters. The parameters are RF power of 350W, gas composition (Ar: O{sub 2}) 50:5 and deposition time at 1, 2, 4 and 6 hours. Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) and Raman spectroscopy were used to characterize surface area of coated samples. The formation of nanocrystalline thin film and the surface morphology were examined using SEM. The crystallite size of TiO{sub 2}-Ag composite coatings were estimated between 20-60 nm based on XRD analysis using Scherer equation and SEM evaluation. The Raman and XRD results suggested that the structure of the TiO{sub 2}-Ag consist of anatase and rutile phases. It also showed that the intensity of anatase peaks increased after samples undergone annealing process at 500 Degree-Sign C.

• OSTI ID: 22069034
• Journal Information: AIP Conference Proceedings, Vol. 1455, Issue 1; Conference: AMSN 2010: 2. ASEAN-APCTP workshop on advanced materials science and nanotechnology, Penang (Malaysia), 21-23 Dec 2010; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ANNEALING
COATINGS
COMPOSITE MATERIALS
CRYSTALS
MORPHOLOGY
NANOSTRUCTURES
PHYSICAL VAPOR DEPOSITION
RAMAN SPECTRA
RAMAN SPECTROSCOPY
SCANNING ELECTRON MICROSCOPY
SILVER
SPUTTERING
STAINLESS STEELS
SUBSTRATES
SURFACE AREA
THIN FILMS
TITANIUM OXIDES
WEAR RESISTANCE
X-RAY DIFFRACTION