Photothermal frequency-domain depth profilometry of a discrete inhomogeneous surface layer on homogeneous substrate

Autor: Funak, F., Mandelis, A., Munidasa, M., Funak, F., Mandelis, A., Munidasa, M.
Zdroj: Journal de Physique IV - Proceedings; September 1994, Vol. 4 Issue: 1 pC7-95-C7-98, 95792p
Abstrakt: A technique for obtaining thermal diffusivity depth profiles of inhomogeneities in two-layered systems is discussed. The method uses incremental differences in the photothermal signal frequency response of a sample with the inhomogeneous surface layer compared to a homogeneous reference sample. Applications to machined steel samples are reported.
Databáze: Supplemental Index