Journal ArticleDOI
Pulsed photothermal modeling of layered materials
TLDR
In this paper, exact analytical solutions of the heatdiffusion problem encountered in the pulsed photothermal evaluation of layered materials are presented, which relates to the long-time decay of the front face temperature following the absorption of a surface heat pulse.Abstract:
Exact analytical solutions of the heat‐diffusion problem encountered in the pulsed photothermal evaluation of layered materials are presented. The analysis relates to the long‐time decay of the front face temperature following the absorption of a surface heat pulse. The configuration of a coating on a substrate is analyzed, and the parameters governing the temperature evolution are identified with a particular emphasis on the thermal contact resistance term. This model provides a new method of measuring the quality of the interface. Previously published data and new experiments with laminated materials and living tissues are analyzed using the proposed analytical solutions.read more
Citations
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Journal ArticleDOI
Transient thermoreflectance from thin metal films
TL;DR: In this article, thermal diffusivity measurements using picosecond transient thermoreflectance (TTR) were performed on films as thin as 100 nm without any evidence of substrate interaction.
Transient thermoreflectance from thin metal films (A)
TL;DR: In this article, thermal diffusivity measurements using picosecond transient thermoreflectance (TTR) were performed on films as thin as 100 nm without any evidence of substrate interaction.
Journal ArticleDOI
Recent advances in the use of infrared thermography
TL;DR: The most relevant experiences devoted to the use of infrared thermography in three main fields, i.e. thermo-fluid dynamics, technology and cultural heritage, which have been performed in the department the authors belong to are described in this article.
Journal ArticleDOI
Review of pulsed thermal NDT: Physical principles, theory and data processing
TL;DR: In this article, the basics of pulsed thermal nondestructive testing (TNDT) including theoretical solutions, data processing algorithms and practical implementation are discussed along with 1D analytical and multi-dimensional numerical solutions.
Journal ArticleDOI
Review and comparison of shearography and active thermography for nondestructive evaluation
Y.Y. Hung,Y. S. Chen,S. P. Ng,Lei Liu,Y. H. Huang,B.L. Luk,R.W.L. Ip,Chi-Man Lawrence Wu,Po Sheun Chung +8 more
TL;DR: In this paper, a comprehensive review of shearography and active thermography and their applications in nondestructive evaluation of materials is presented, and a comparison of the advantages and limitations of two techniques for non-destructive evaluation is also presented.
References
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Book
Conduction of Heat in Solids
H. S. Carslaw,John Conrad Jaeger +1 more
TL;DR: In this paper, a classic account describes the known exact solutions of problems of heat flow, with detailed discussion of all the most important boundary value problems, including boundary value maximization.
PatentDOI
Thin film thickness measurement with thermal waves
Allan Rosencwaig,Jon Opsal +1 more
TL;DR: In this article, a method and apparatus for thin film thickness measurements with thermal waves in which heating and detection laser beams are focused onto the film, normal to the surface of the film with the two beams parallel and non-coaxial.
Journal ArticleDOI
Thin-film thickness measurements with thermal waves
TL;DR: In this paper, a technique nouvelle de deflexion d'un faisceau laser induite par une onde thermique permettant de mesurer des epaisseurs de couches opaques ou transparentes de 500 a 25000 A.
Journal ArticleDOI
Remote sensing applications of pulsed photothermal radiometry
A. C. Tam,B. Sullivan +1 more
TL;DR: In this article, the pulsed photothermal radiometry (PPTR) technique is used for single-ended remote sensing applications, such as spectroscopic detection, measurement of absolute absorption coefficients in opaque materials, and sensing of dimensions or thermal properties in inhomogeneous materials.