WIT Press


Resonant Ultrasound Spectroscopy For Investigation Of Thin Surface Coatings

Price

Free (open access)

Paper DOI

10.2495/MC090231

Volume

64

Pages

12

Page Range

237 - 248

Published

2009

Size

604 kb

Author(s)

H. Seiner, M. R°uˇzek, P. Sedl´ak, L. Bicanov´a & M. Landa

Abstract

In this paper, we analyze the possibility of determination of all in–plane independent elastic coefficients of an anisotropic surface coating on a known substrate by means of resonant ultrasound spectroscopy (RUS). A novel approach based on perturbation theory is presented, which enables direct determination of the elastic coefficients of the coating from the shift of resonant frequencies induced by the deposition of the layer. The reliability of the proposed concept is investigated by numerical simulations as well as verified by experiments. Keywords: ultrasound spectroscopy, thin coatings, perturbation theory, non-destructive evaluation, in-plane anisotropy.

Keywords

ultrasound spectroscopy, thin coatings, perturbation theory, non-destructive evaluation, in-plane anisotropy