3D atomic coatings open up broad range of applications / Erik Kremers in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 14, N° 2 (2021)

[article]  inINTERNATIONAL SURFACE TECHNOLOGY (IST) > Vol. 14, N° 2 (2021) . - p. 26-29 Titre : 3D atomic coatings open up broad range of applications Type de document : texte imprimé Auteurs : Erik Kremers, Auteur Année de publication : 2021 Article en page(s) : p. 26-29 Langues : Anglais (eng) Catégories : Dépôt de couches minces atomiques Dépôt électrolytique Electronique -- Matériaux Nanotechnologie Revêtements Structures tridimensionnelles Textiles et tissus à usages techniques Index. décimale : 667.9 Revêtements et enduits Résumé : With its innovative Spatial Atomic Layer Deposition (SALD) process, a Dutch company has found a way to apply three-dimensional coatings on an industrial scale - with individual layers that are as thin as an atom. This opens up a wide range of applications. Note de contenu : - Further development of ALD - Three-dimensional atomic nano-coatings - SALD plus plasma - A range of more than 1000 kms for electric cars - Using smartphones for days without recharging - Organic electronics on the advance - Techno-textiles for new fashion trends - Tear-resistant atom-thin films - Fig. 1 : In the Spatial Atomic Layer Deposition process, materials are coated with atom-thin layers that ultimately produce a three-dimensional structure - Fig. 2 : Different materials can be applied with each separate layer, thus allowing a chemical reaction to take place with the substance applied previously Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37444 [article]

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Chemical and electrochemical characterization of TiO2/Al2O3 atomic layer depositions on AZ-31 magnesium alloy / E. Marin in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 3 (05/2012)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 9, N° 3 (05/2012) . - p. 347-355 Titre : Chemical and electrochemical characterization of TiO2/Al2O3 atomic layer depositions on AZ-31 magnesium alloy Type de document : texte imprimé Auteurs : E. Marin, Auteur ; A. Lanzutti, Auteur ; L. Guzman, Auteur ; L. Fedrizzi, Auteur Année de publication : 2012 Article en page(s) : p. 347-355 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alumine Anticorrosion Caractérisation Dépôt de couches minces atomiques Magnésium -- Alliages Polarisation (électricité) Revêtement métallique Revêtements protecteurs Index. décimale : 667.9 Revêtements et enduits Résumé : In this study, innovative TiO2/Al2O3 mono/multilayers were applied by atomic layer depositions (ALD) on ASTM-AZ-31 magnesium/aluminum alloy to enhance its well-known scarce corrosion resistance. Four different configurations of ALD layers were tested: single TiO2 layer, single Al2O3 layer, Al2O3/TiO2 bilayer and Al2O3/TiO2/Al2O3/TiO2 multilayer deposited using Al[(CH3)]3 (trimethylaluminum, TMA), and TiCl4 and H2O precursors. All depositions were performed at 120°C to obtain an amorphous-like structure of both oxide layers. The four coatings were then investigated using different techniques, such as scanning electron microscope (SEM), stylus profilometer, glow discharge optical emission spectrometry (GDOES) and polarization curves in 0.05-M NaCl solution. The thickness of all the coatings was around 100 nm. The layers compositions were successfully investigated by the GDOES technique, although obtained data seem to be affected by substrate roughness and differences in sputtering rates between ceramic oxides and metallic magnesium alloy. Corrosion resistance showed to be strongly enhanced by the nanometric coatings, giving lower corrosion current densities in 0.05-M NaCl media with respect to the uncoated substrate (from 10−4 to 10−6 A/cm2 for the single layers and from 10−4 to 10−8 A/cm2 for the bi- and multilayers). All polarization curves on coated samples also showed a passive region, wider for the bi-layer (from −0.58 to −0.43 V with respect to Ag/AgCl) and multilayer (from −0.53 to −0.38 V with respect to Ag/AgCl) structures. DOI : 10.1007/s11998-011-9372-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-011-9372-8.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15965 [article]

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Corrosion protection of AISI 316 stainless steel by ALD alumina/titania nanometric coatings / E. Marin in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 5 (10/2011)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 5 (10/2011) . - p. 655-659 Titre : Corrosion protection of AISI 316 stainless steel by ALD alumina/titania nanometric coatings Type de document : texte imprimé Auteurs : E. Marin, Auteur ; A. Lanzutti, Auteur ; L. Guzman, Auteur ; L. Fedrizzi, Auteur Année de publication : 2011 Article en page(s) : p. 655-659 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier inoxydable Alumine Anticorrosion Dépôt de couches minces atomiques Dioxyde de titane Revêtements protecteurs Index. décimale : 667.9 Revêtements et enduits Résumé : Stainless steels are used today in a wide range of applications as a result of their combination of high corrosion resistance and good mechanical properties. In some applications, for example, temporary contact biomedical devices or solar water heaters, corrosion resistance may need further improvement, and surface coatings may be applied for enhanced protection. In this study, AISI 316 stainless steel samples with two different standard industrial finishes were coated using atomic layer deposition (ALD) of Al2O3/TiO2 layers. The morphology, composition and corrosion protection was then investigated using different techniques. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) were used to obtain a morphological characterization of coatings and substrates. Glow discharge optical emission spectrometry (GDOES) was used to obtain an in-depth profile of composition. Polarization curves in a 0.2 M NaCl solution were used to evaluate the corrosion protection given by the coatings. The deposited ALD layers were found to be almost flawless. The measured RMS roughness values were compared before and after the ALD, and were around 50 and 370 nm for the two samples. GDOES profiles were strongly influenced by the roughness of the substrate. The corrosion protection obtained on AISI 316 stainless steel by the application of nanometric coatings proved to be very effective in reducing the passive region current density from 10−7 to less than 10−9 A/cm2 and increasing the passive region potential interval from 0.8 to 1.3 V before breakdown. DOI : 10.1007/s11998-011-9327-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-011-9327-0.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12242 [article]

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Hybrid multilayer thin-film fabrication by atmospheric deposition process for enhancing the barrier performance / Srikanth Jagadeesan in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 6 (11/2018)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 6 (11/2018) . - p. 1391-1399 Titre : Hybrid multilayer thin-film fabrication by atmospheric deposition process for enhancing the barrier performance Type de document : texte imprimé Auteurs : Srikanth Jagadeesan, Auteur ; Jong Hwan Lim, Auteur ; Kyung Hyun Choi ; Yang Hoi Doh Année de publication : 2018 Article en page(s) : p. 1391-1399 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Couches minces multicouches Dépôt de couches minces atomiques Matériaux -- Propriétés barrières Morphologie (matériaux) Revêtements -- Propriétés mécaniques Revêtements -- Propriétés optiques Surfaces -- Analyse Traitement rouleau à rouleau Index. décimale : 667.9 Revêtements et enduits Résumé : In this paper, a multilayer barrier thin film, based on polyvinylidene difluoride (PVDF)–silicon dioxide (SiO2), has been fabricated on a PET substrate through a novel method of joint fabrication techniques. The inorganic SiO2 thin film was deposited using a roll-to-roll atmospheric atomic layer deposition system (R2R-AALD), while the organic PVDF layer was deposited on the surface of SiO2 through the electrohydrodynamic atomization (EHDA) technique. The multilayer barrier thin films exhibited very good surface morphology, chemical composition, and optical properties. The obtained values for arithmetic surface roughness and water contact angle of the as-developed multilayer barrier thin film were 3.88 nm and 125°, respectively. The total thickness of the multilayer barrier thin film was 520 nm with a high optical transmittance value (85–90%). The water vapor transmission rate (WVTR) of the barrier thin film was ~ 0.9 × 10−2 g m−2 day−1. This combination of dual fabrication techniques (R2R-AALD and EHDA) for the development of multilayer barrier thin films is promising for gas barrier applications. Note de contenu : - EXPERIMENTAL DETAILS : Materials and method - Roll-to-roll atmospheric atomic layer deposition of SiO2 - PVDF deposition through EHDA technique - Characterization - RESULTS AND DISCUSSION : Surface morphology - Compositional analysis - Optical properties - Barrier properties - Mechanical property DOI : 10.1007/s11998-018-0090-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0090-3.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31356 [article]

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Influence of substrate contamination, web handling, and pretreatments on the barrier performance of aluminum oxide atomic layer-deposited BOPP film / Kimmo Lahtinen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 5 (09/2014)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 11, N° 5 (09/2014) . - p. 775-784 Titre : Influence of substrate contamination, web handling, and pretreatments on the barrier performance of aluminum oxide atomic layer-deposited BOPP film Type de document : texte imprimé Auteurs : Kimmo Lahtinen, Auteur ; Johanna Lahti, Auteur ; Petri Johansson, Auteur ; Tarja Seppänen, Auteur ; David C. Cameron, Auteur Année de publication : 2014 Article en page(s) : p. 775-784 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alumine Contamination chimique Dépôt de couches minces atomiques Polypropylène Revêtements Traîtements de surface Index. décimale : 667.9 Revêtements et enduits Résumé : This study shows the sensitivity of the performance of a 30 nm Al2O3 barrier layer deposited by atomic layer deposition (ALD) on biaxially oriented polypropylene (BOPP) film to material processing. The most detrimental effects were caused by the contact between the rollers and the deposited layer during web handling and the surface contamination of the substrate prior to the deposition process. The shipment of the material as sheets and the atmospheric corona treatment of the coated surface had also a minor effect on the barrier performance. The results obtained show the importance of carrying out protective actions during both pre- and post-processing of the material in order to maintain the barrier performance of an ALD-Al2O3 layer. Note de contenu : - First stage : processes before the ALD coating - Second stage : processes after the ALD coating DOI : 10.1007/s11998-014-9584-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9584-9.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22060 [article]

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Rolling out the sunshine : advanced solar cell production via continuous coating systems / S. Sneck in SURFACE COATINGS INTERNATIONAL, Vol. 96, 3 (06/2013)  

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Uniform color coating of multilayered TiO2/Al2O3 films by atomic layer deposition / Woo-Hee Kim in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)  

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