Abstract
DLC films are beginning to find their way into industrial applications to prolong the life of machine components. Preliminary wear tests on nano-structured DLC coated samples demonstrated an appreciable improvement in pitting resistance and usable life. One of the key parameters that have great impact on the wear resistance of a material is its microstructure. The acoustic microscope was developed as a tool for studying internal microstructure of non-transparent solids and now it is widely used for detection of cracks and subsurface defects. Despite the expedient use of this NDE technique, quantitative characterization of the imaged defects is rarely completed because the theory describing image formation caused by subsurface defects is complicated (Lobkis et al., 1995) and it requires knowledge of the material’s elastic properties. In this article, we used scanning acoustic microscopy (Leitz ELSAM) to detect and analyze defects in thin chromium-alloyed DLC (Cr-DLC) films. Surface Brillouin scattering (SBS) and detection of the surface acoustic waves (SAWs) by laser (Laser-SAW technique) were applied to measure elastic properties of the films.
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References
Beghi, M. G., Every, A. G. and Zinin, P. V. (2003) Brillouin Scattering Measurement of SAW Velocities for Determining Near-Surface Elastic Properties, in T. Kundu, (ed.) Ultrasonic Nondestructive Evaluation: Engineering and Biological Material Characterization, CRC Press, Boca Raton pp. (in press).
Lefeuvre, O., Zinin, P. and Briggs, G. A. D. (1998) Leaky surface waves propagating on a fast on slow system and the implications for material characterization, Ultrasonics 36(1–5), 229–232.
Lobkis, O. I., Kundu, T. and Zinin, P. V. (1995) A theoretical analysis of acoustic microscopy of spherical cavities, Wave Motion 21(2), 183–201.
Lomonosov, A., Mayer, A. P. and Hess, P. (2001) Laser Controlled Surface Acoustic Waves, in M. Levy, H. Bass, R. Stern and V. Keppens, (eds.), Handbook of Elastic Properties of Solids, Liquids, and Gases. Volume
I: Dynamic Methods for Measuring the Elastic Properties of Solids, Academic Press, New York, 1 pp. 137–186.
Zinin, P. V. and Weise, W. (2003) Theory and applications of acoustic microscopy, in T. Kundu, (ed.) Ultrasonic Nondestructive Evaluation: Engineering and Biological Material Characterization, CRC Press, Boca Raton pp. (in press).
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© 2004 Springer Science+Business Media Dordrecht
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Zinin, P.V. et al. (2004). Acoustic Microscopy, Brillouin Scattering and Laser-Saw Technique for Defect Characterization in DLC Films. In: Arnold, W., Hirsekorn, S. (eds) Acoustical Imaging. Acoustical Imaging, vol 27. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-2402-3_29
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DOI: https://doi.org/10.1007/978-1-4020-2402-3_29
Publisher Name: Springer, Dordrecht
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