Spatially localized measurement of isotropic and anisotropic thermophysical properties by photothermal radiometry

2020 ◽  
Vol 128 (17) ◽  
pp. 175104 ◽  
Author(s):  
Georges Hamaoui ◽  
Ezekiel Villarreal ◽  
Heng Ban ◽  
Mihai Chirtoc ◽  
Nicolas Horny
Keyword(s):  
Thermophysical Properties ◽  
Photothermal Radiometry

Analysis of semitransparent layered materials by modulated photothermal radiometry: application to the bonding and thickness control of enamel coatings

1986 ◽  
Vol 64 (9) ◽  
pp. 1297-1302 ◽  
Author(s):  
Michel Egee ◽  
Robert Dartois ◽  
Jean Marx ◽  
Christian Bissieux
Keyword(s):  
Theoretical Model ◽  
Thermal Resistance ◽  
Coating Thickness ◽  
Thermophysical Properties ◽  
Layered Materials ◽  
Photothermal Radiometry ◽  
Experimental Results ◽  
Adhesion Properties ◽  
Thickness Control

To use modulated photothermal radiometry to control the thermophysical properties of enamel coatings, we first analytically resolve a theoretical model with two finite semitransparent layers and thermal-resistance interface; then we experimentally study several samples with various adhesion properties. The comparison of the experimental results with the calculations allows one, under the present conditions, to point out the possibilities and limits of the method, mainly for the control of coating thickness and delaminations.

Photothermal Radiometry of Thermal Spray Coatings: Thermophysical Properties and Disbonding Effects Characterization

2000 ◽  
Author(s):  
A. Mandelis ◽  
J.A. Garcia ◽  
B. Farahbarhsh
Keyword(s):  
Thermophysical Properties ◽  
Photothermal Radiometry ◽  
Experimental Results ◽  
In Situ Monitoring ◽  
Spray Coatings ◽  
Interfacial Defects ◽  
Steel Substrates ◽  
Sprayed Coatings ◽  
Thermal Sprayed Coatings

Abstract Laser infrared photothermal radiometry (PTR) can be used to determine the thermophysical properties (thermal diffusivity and conductivity) and interfacial defects (i.e. disbonding) of various thermal sprayed coatings on carbon steel substrates. PTR experimental results are compared with a one-dimensional photothermal model that can take into account roughness affects and interfacial defects by considering a roughness equivalent-layer and an equivalent-thermal resistance, respectively. The foregoing thermophysical parameters of the thermal sprayed coatings are obtained when a multi-parameter optimization algorithm is used to fit the PTR experimental results. The potential of the PTR technique for in-situ monitoring of the coating process and the characterization of the thermal sprayed coatings will be discussed in this paper.

DEVELOPMENT OF POLYMER COMPOSITES WITH IMPROVED THERMOPHYSICAL PROPERTIES FOR SHIPBUILDING AND SHIP REPAIR

2019 ◽  
Vol 10 (2) ◽  
pp. 117-134 ◽  
Author(s):  
A. V. Akimov ◽  
A. V. Buketov ◽  
А. А. Sapronov ◽  
Mykola V. Brailo ◽  
S. V. Yakushchenko ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Thermophysical Properties ◽  
Ship Repair

IDENTIFICATION OF THE THERMOPHYSICAL PROPERTIES OF SEMI-TRANSPARENT MATERIALS

Equipment ◽  
2006 ◽  
Author(s):  
O. Wellele ◽  
H. R. B. Orlande ◽  
Nerbe J. Ruperti, Jr. ◽  
Marcelo J. Colaco ◽  
A. Delmas
Keyword(s):  
Thermophysical Properties ◽  
Transparent Materials
Sign in / Sign up

Export Citation Format

Share Document