Results 61 to 70 of about 5,622 (205)

IMPLEMENTAZIONE DI TECNICHE NDT DI TERMOGRAFIA AD INFRAROSSI SU PANNELLI IN COMPOSITO GRP PER APPLICAZIONI NAUTICHE [PDF]

, 2010
Il presente lavoro descrive l’implementazione di due tecniche di termografia attiva ad infrarossi per il controllo non distruttivo (IRNDT) di delaminazioni sub-superficiali su pannelli in composito (GRP) di grosso spessore, tipicamente impiegati per uso ...
PITARRESI, Giuseppe, Riforgiato, F.
core  

Correlation of micro and nano–scale defects with WVTR for aluminium oxide barrier coatings for flexible photovoltaic modules [PDF]

, 2013
This paper seeks to establish a correlation between surface topographical defects and water vapour transmission rate (WVTR) measured under laboratory conditions for aluminium–oxide (Al2O3) barrier film employed in flexible photovoltaic (PV) modules ...
Blunt, Liam, Elrawemi, Mohamed, Fleming, Leigh, Sweeney, Francis   +3 more
core   +1 more source

Measurement of Thermal Diffusivity by Lock-in Thermography

Proceedings of the 2000 International Conference on Quantitative InfraRed Thermography, 2000
Diffusivity is generally measured on small sample under laboratory conditions where each side of the specimen is accessible, but one-side measurement may be necessary in such applications requiring in situ inspection. Experimental results are reported applying a thermoelectric unit in contact with the sample, acting alternatively as heat source and ...
P.G. Bison, S. Marinetti, E. Grinzato
openaire   +1 more source

Three‐Dimensional Highly Thermally Conductive Graphene Blocks by Multiscale Blending and Multistage Pressure Induction

Carbon Energy, EarlyView.
An expandable‐thickness graphene block (GPB) with high thermal conductivity synthesized through multiscale blending and multistage pressure induction (MBP) achieves a record thickness of 12.1 mm, which is more than 10 times that of existing graphene materials. The maximum thermal diffusion ability of GPB‐MBP reaches 6.3 W/K, which offers a new approach
Liyu Zhang, Haitao Hu, Xuan Li, Haihan Xu, Xiaoying Gao, Ruishi Lin, Yingze Meng, Jiaxin He, Shoujin Chang, Guoliang Ding   +9 more
wiley   +1 more source

The Diagnosis of Shunt Defects in CIGS Modules Using Lock-In Thermography: An Empirical Comparative Study

Energies, 2023
Shunt defects are often detected in solar panels intended for photovoltaic applications. However, existing nondestructive detection technologies have certain inherent drawbacks depending on the application scenario.
Seung Hoon Lee, Hae-Seok Lee, Donghwan Kim, Yoonmook Kang   +3 more
doaj   +1 more source

A review of thermographic techniques for damage investigation in composites [PDF]

, 2013
The aim of this work is a review of scientific results in the literature, related to the application of thermographic techniques to composite materials.
Chiara Colombo, Flavia Libonati, Laura Vergani   +2 more
core   +2 more sources

Detection of Particulate Matter With Lock‐In Thermography

CleanMat, EarlyView.
Accurate quantification of black carbon is essential due to its significant impact on climate, air quality, and human health. Lock‐in thermography (LIT), as implemented by NanoLockin's instrument Calorsito, offers a sensitive, scalable, and reproducible approach for detecting black carbon on filter substrates.
Alina Oetsen, Christoph Geers, Andreas Traube, Gunter Festel, Daniel Fehr, Mathias Bonmarin   +5 more
wiley   +1 more source

PROCESSING OF RESULTS FROM A THERMAL FEM ANALYSIS USING THE LOCK-IN METHOD AND COMPARISON WITH EXPERIMENT [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2019
This article dealt with the comparison of results obtained from an experiment and from the numerical thermal FEM analysis. Sample with defects were printed on a 3D printer.
Ondrej ŠTALMACH, Vladimír DEKÝŠ, Pavol NOVÁK, Milan SAPIETA   +3 more
doaj   +1 more source

Non-Destructive Fatigue Evaluation through Thermophysical Properties Using Lock-In Thermography

Engineering Proceedings, 2023
In this study, we proposed a non-destructive testing and evaluation (NDT&E) method for assessing the micro-scale fatigue damage of carbon-fiber-reinforced plastic (CFRP) structures.
Ryohei Fujita, Natsuko Kudo, Shun Abe, M. J. Mohammad Fikry, Jun Koyanagi, Shinji Ogihara, Hosei Nagano   +6 more
doaj   +1 more source

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source