Abstract
The photoacoustic (PA) technique can be very useful in non-destructive testing of defects in materials. It offers also a possibility for performing a depth profiling analysis of layered materials. At high modulation frequencies, the signal only depends on the thermal diffusivity of the top layer. In the low frequency range the signal contains information about the effusivity ratios of the subsequent layers. In this work, the frequency dependence of the PA signal is used to determine the thermal properties of two-layer structures composed of thin solid films in contact with liquids.
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© 1992 Springer-Verlag Berlin Heidelberg
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Glorieux, C., Mens, E., Thoen, J. (1992). Photoacoustic Investigation of Thin Solid Films in Contact with Liquids. In: Bićanić, D. (eds) Photoacoustic and Photothermal Phenomena III. Springer Series in Optical Sciences, vol 69. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-47269-8_174
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DOI: https://doi.org/10.1007/978-3-540-47269-8_174
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-13876-2
Online ISBN: 978-3-540-47269-8
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