"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Physical characterization of nanostructured thin films used to improve hip prostheses

LILIANA LAURA BADITA1,* , GHEORGHE GHEORGHE1

Affiliation

  1. National Institute of Research and Development in Mechatronics and Measurement Technique, 021631-Bucharest, Romania

Abstract

Depositions of TiN thin films on SS 316L steel substrates by Pulsed Laser Deposition (PLD) method were realized to improve general performances and, in particular, mechanical characteristics of hip prostheses. The number of laser pulses applied varied between 5000 and 20000. Physical characterization of deposited thin films using Fourier Transform Infrared Spectroscopy (FTIR), X-ray diffraction (XRD) and Atomic Force Microscopy (AFM) were performed in order to test the adhesion of the coating on the substrate. FTIR investigations have demonstrated the existence of a N-H bond and thus, stoichiometric transfer of the material. The achieved XRD diffraction patterns showed that TiN coatings were polycrystalline. The AFM system contributed to obtain some information referring to the surface of deposited layer, determining topographic parameters from ultraprecise measurements. From these studies of the authors, the conclusion was that the protective coating of TiN deposited by PLD technique is a suitable solution in order to improve characteristics of hip prostheses..

Keywords

Hip prostheses, Thin films, Fourier Transform Infrared Spectroscopy, X-ray diffraction, Atomic force microscopy.

Submitted at: March 24, 2014
Accepted at: July 10, 2014

Citation

LILIANA LAURA BADITA, GHEORGHE GHEORGHE, Physical characterization of nanostructured thin films used to improve hip prostheses, Journal of Optoelectronics and Advanced Materials Vol. 16, Iss. 7-8, pp. 945-950 (2014)