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Advanced radiachromic radiometry for UV curing processes / R. W. Stowe in COATINGS TECH, Vol. 6, N° 7 (07-08/2009)  

[article]  inCOATINGS TECH > Vol. 6, N° 7 (07-08/2009) . - p. 20-24 Titre : Advanced radiachromic radiometry for UV curing processes Type de document : texte imprimé Auteurs : R. W. Stowe, Auteur ; J. W. Guarniere, Auteur Année de publication : 2009 Article en page(s) : p. 20-24 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Radiométrie Revêtements -- Séchage sous rayonnement ultraviolet Index. décimale : 667.9 Revêtements et enduits Résumé : An advanced study of the use of instrument-resolved radiachromic radiometry to solve some of the difficulties presented by traditional radiometry in 3-D processing, roll-to-roll printing and coating, and ink jet printing. Elements of responsivity, dynamic range, and adaptability of various types of films are discussed. Commercially available films and experimental films are studied. Methods of correlation to produce a numerical measure of UV exposure are presented. These methods can be applied easily to laboratory characterization of materials and to production quality control. The principal purpose is to explore the use of standard instruments to quantify the response of radiachromic films in terms of transmission or reflection densitometry. This allows correlation of their optical density to instrument radiometry for (1) process design optimization and/or (2) periodic measurements to verify lamp condition over time. The most important conclusion is that, when carefully designed and used, radiachromic films can be a useful extension of – but not a substitute for – instrument radiometry. En ligne : https://drive.google.com/file/d/1CT7KhX4k0xvyMc8-07GjVh1RHr5ljyvD/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6109 [article]

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Development and deployment of a high throughput exterior durability program for architectural paint coatings / Edward A. Schmidt in COATINGS TECH, Vol. 6, N° 7 (07-08/2009)  

[article]  inCOATINGS TECH > Vol. 6, N° 7 (07-08/2009) . - p. 26-30 Titre : Development and deployment of a high throughput exterior durability program for architectural paint coatings Type de document : texte imprimé Auteurs : Edward A. Schmidt, Auteur Année de publication : 2009 Article en page(s) : p. 26-30 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Contraintes (mécanique) Echantillonnage Revêtements en bâtiment -- Détérioration:Peinture en bâtiment -- Détérioration Index. décimale : 667.9 Revêtements et enduits Résumé : This article describes a new high throughput system for evaluating the exterior durability of architectural coatings undergoing natural weathering. The motivation for the design and deployment of this system is the ability to better understand the range and distribution of "real world" performances by testing more exposure scenarios than would be possible by traditional means. The system integrates inventory management, sample handling, and tracking with automated data acquisition, analysis, and archival capabilities including the use of environmental sensors, machine vision, and informatics. One of the unique characteristics of this system is that it not only facilitates the evaluation of more samples per unit time per unit resource compared to traditional methods, but it also produces more objective data per sample analysis. En ligne : https://drive.google.com/file/d/1H0teFyvKjXnqaeAss1CAYGnOKG2894ZQ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6110 [article]

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