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Analysis of Electrochemical Noise (ECN) of TiO2 Nanoparticles Coated Ti-6Al-4V in Simulated Biofluids Using Fractional Order Signal Processing (FOSP) Techniques

[+] Author Affiliations
Hu Sheng

Dalian University of Technology, Dalian, China; Utah State University, Logan, UT

Nikita Zaveri, YangQuan Chen, Anhong Zhou

Utah State University, Logan, UT

Paper No. DETC2009-86870, pp. 1157-1171; 15 pages
  • ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 4: 7th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B and C
  • San Diego, California, USA, August 30–September 2, 2009
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4901-9 | eISBN: 978-0-7918-3856-3
  • Copyright © 2009 by ASME


The electrochemical noise (ECN) measurements were conducted and used to assess the corrosion behaviors of the bare and TiO2 nanoparticles coated Ti-6Al-4V bioimplants exposed to three simulated biofluid solutions: 1) NaCl solution; 2) Hank’s solution; and 3) Cigada solution. The ECN data for bioimplants in these solutions were assessed by signal analysis techniques in both the time and frequency domains. In time domain analysis, the parameters including skewness, kurtosis, and noise resistance (Rn) were calculated. In frequency domain analysis, we introduced Fractional Order Signal Processing (FOSP) techniques to process the ECN data. Our results suggested that FOSP may provide a better signal analysis tool to evaluate the ECN signals than the conventional fast Fourier transforms (FFT) processing method.

Copyright © 2009 by ASME



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