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Titre : A review on tribological coatings Type de document : texte imprimé Auteurs : Nihal Srivastava, Auteur Année de publication : 2017 Article en page(s) : p. 85-95 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion
Composites
Construction sandwich
Dépôt chimique en phase vapeur
Dépôt en phase vapeur
Electrochimie
Essais dynamiques
Nanostructures
Projection thermique
Revêtements -- Propriétés mécaniques
Revêtements multicouches
Tribologie (technologie)Index. décimale : 667.9 Revêtements et enduits Résumé : The energy losses due to friction in the industrialized countries represent an annual cost estimated at between 5 and 7% of their Gross Domestic Product. Approximately, one-third of the world's energy resources in present use appear as friction in one form or another. One of the major contributors to these friction losses is industrial machinery. Surface engineering, including surface treatments and coatings, is one of the most effective and flexible solutions for reduction of friction by Tribological Coatings.
Tribological coatings are used for wear resistance and friction reduction between interacting surfaces in relative motion. Its major application will be in automotive engines, cutting tools, industrial parts, etc. This also increases efficiency of moving parts leading to low carbon emission.
This paper will throw light upon different types, techniques, end usage, and methodology of application of Tribological Coating.Note de contenu : - Need for tribological coatings
- Introduction
- Chemistry of deposition of tribological coating : Electrochemical deposition - Thermal spraying - Chemical vapor deposition (cvd) - Physical vapor deposition (pvd)
- Design of coating
- Single component coatings
- Sandwich coatings
- Multi-component coatings
- Multilayer coatings
- Gradient coating
- Nanostructure coatings
- Superlattice coating
- Adaptive coatings
- Testing and evaluation of deposited coating : Adhesion to the substrate - Intrinsic mechanical properties - Tribological properties - Resistance to abrasive wear - Resistance to particle erosion - Resistance to sliding wear - Unidirectional rotating sliding tests - Fretting tests
- FIGURES : 1. Typical values of coating thickness and process temperature (temperature at the substrate surface of today's tribological coating methods) - 2. Scheme of electroplating process - 3. Scheme of wire flame spraying - 4. Principles of CVD technique - Scheme of chemical vapor deposition technologies - 6. Structure of tribological coating - 7. Nanoindentation curves for three PVD coatings : TiB2, TiN, and CrN. The hardness values and Young's moduli (GPa) obtaines were 53/566 (TiB2), 30/450 (TiN), and 25/330 (CrN), respectively - 8. a: A four-point beam bending device suited for operation in an SEM where 'A' indicates the test bam, 'B' the load cell and 'C' the acoustic detector - 9. Sketch of scratch tests - 10. Principle of ball cratering test. Fig. a schematic view of dimple grinder - 11. Plint TE 66 micro-scale abrasion tester - 12. (a) Ball-on-disk contact ; 12 (b) unidirectional rotating sliding tribometer - 13. Fretting rig and contact configurations - 14. Fretting loop Q-? curveEn ligne : https://drive.google.com/file/d/1j0V7wcZudB_dtM9m42dY71mhvzAxJMfp/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29758
in PAINTINDIA > Vol. LXVII, N° 12 (12/2017) . - p. 85-95[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19479 - Périodique Bibliothèque principale Documentaires Disponible Self-healing primers extend protection / Subramanyam V. Kasisomayajula in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2018)
[article]
Titre : Self-healing primers extend protection : Improving performance in organic zinc-rich primers to prevent corrosion Type de document : texte imprimé Auteurs : Subramanyam V. Kasisomayajula, Auteur ; Gerald O. Wilson, Auteur Année de publication : 2018 Article en page(s) : p. 22-28 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Adhésion
Anticorrosifs
Anticorrosion
Electrochimie
Epoxydes
Métaux -- Revêtements protecteurs
PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères.
Primaire (revêtement)
Revêtement autoréparant
Revêtements -- Additifs
Revêtements bi-composant
Revêtements multicouches
ZincIndex. décimale : 667.9 Revêtements et enduits Résumé : Zinc-rich coatings are used in a wide range of industries to protect steel substrates in extremely corrosive environments. However, with exposure to a corrosive environment over time, the zinc particles corrode to form a non-conductive oxide layer around the particles, decreasing the sacrificial protective capability of the coating. Incorporating a self-healing additive in organic zinc-rich primers can extend the lifetime of the protective system. Note de contenu : - Zinc-rich primers with healing agent maintain protection
- Electrochemical results support self-healing performance
- Additive helps maintain coating adhesion
- Self-healing functinality enhances protection
- Fig. 1 : Using protective coatings to extend substrate lifetime. The formation of ferric oxyhydroxide indicates metallic corrosion
- Fig. 2 : Self-healing protective coatings extend substrate lifetime by delaying mechanical degradation
- Fig. 3 : One-coat systems. (a) Standard commercially available epoxy-based zinc-rich primer. (b) Zinc-rich primer incorporating microencapsulated epoxy-based healing agent
- Fig. 4 : Electrochemical characterisation via salt fog exposure of (a) unscribed substrates and (b) scribed substrates, and (c) linear polarisation of scribed substrates
- Fig. 5 : Single layer two-component epoxy-polyamide zinc-rich primers after 250 hours of B117 exposure followed by adhesion test
- Fig. 6 : Single layer two-component epoxy-polyamide zinc-rich primers after 500 hours of B117 exposure followed by adhesion test
- Fig. 7 : Comparison of two-coat systems. A) Commercially available system. b) Primer with self-healing additive
- Fig. 8 : Two-layer two component epoxy-polyamide-based zinc-rich coatings scribed after 1000 h salt fog exposure and scraping, and comparison of average adhesion lossEn ligne : https://drive.google.com/file/d/1EPLO4oDsRlQtvlBTPztytYAO1tI_IP1n/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30836
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 7-8 (07-08/2018) . - p. 22-28[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20098 - Périodique Bibliothèque principale Documentaires Disponible Simultaneous multilayer coating of water-based and alcohol-based solutions / R. Horiuchi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 5 (09/2015)
[article]
Titre : Simultaneous multilayer coating of water-based and alcohol-based solutions Type de document : texte imprimé Auteurs : R. Horiuchi, Auteur ; W. J. Suszynski, Auteur ; M. S. Carvalho, Auteur Année de publication : 2015 Article en page(s) : p. 819-826 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Couches minces multicouches
Démouillage (chimie des surfaces)
Revêtements multicouches
Solutions (chimie)
Solutions aqueuses (chimie)Index. décimale : 667.9 Revêtements et enduits Résumé : Multilayer continuous liquid coating is the most efficient way to manufacture films that require more than one layer for optimal performance. Two-layer slot coating is one of the different coating methods largely used to deposit two thin, uniform liquid layers onto a moving substrate. In recent years, the operating conditions and solution properties which are required to avoid various coating defects have been discussed in the literature. However, these past studies have not focused on the problem of top layer dewetting, which may occur at some operating conditions. It is important to include in the operating window of the process, the region of the parameter space at which the top layer dewetting is avoided. In this work, we used water-based and alcohol-based solutions to create two-layer films over a moving substrate using a two-layer slot coating die. The critical operating condition at which top layer dewetting is observed is determined experimentally for different liquid viscosities, surface tensions, and wet thicknesses. A physical mechanism that explains the reported phenomenon is proposed. The results show how dewetting can be avoided by controlling the liquid properties (surface tension and viscosity) and wet thickness of each layer and will certainly help the design of two-layer slot coating processes. Note de contenu : - Results : Two layer slot coating
- Effect of coating flow on top layer dewettingDOI : 10.1007/s11998-015-9689-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9689-9.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24680
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Code-barres Cote Support Localisation Section Disponibilité 17467 - Périodique Bibliothèque principale Documentaires Disponible Slot die-coated blue SMOLED multilayers / Sebastian M. Raupp in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 5 (09/2017)
[article]
Titre : Slot die-coated blue SMOLED multilayers Type de document : texte imprimé Auteurs : Sebastian M. Raupp, Auteur ; Lisa Merklein, Auteur ; Sebastian Hietzschold, Auteur ; Martin Zürn, Auteur ; Philip Scharfer, Auteur ; Wilhelm Schabel, Auteur Année de publication : 2017 Article en page(s) : p. 1029-1037 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Diodes électroluminescentes
Electronique -- Matériaux
Enduction
Microscopie à force atomique
Morphologie (matériaux)
Poly(3,4-éthylènedioxythiophène)
Polystyrène sulfone
Revêtement -- Séchage
Revêtements multicouchesIndex. décimale : 667.9 Revêtements et enduits Résumé : The key challenge in solution-processing efficient OLEDs is to realize the multilayer device architecture. We demonstrate that slot die coating is applicable to deposit small-molecule (SM) layers on top of each other without dissolving the underlying layer. A stack for a blue SMOLED is chosen comprising slot die-coated PEDOT:PSS, an SM emissive layer (EML) as well as an SM electron transport layer (ETL). The devices are fabricated in a sheet-to-sheet coating process with a slot die table coater under ambient conditions. While keeping the processing parameters constant for PEDOT:PSS and the EML, the composition of the ETL is varied. The choice of solvent for coating the ETL is crucial regarding wetting and dissolution of the underlying layer, solubility, surface roughness, and device efficiencies. Average roughness values down to 0.38 nm and peak to valley values around 10 nm were measured. Comparing device efficiencies of devices with and without ETL, an increase in efficiency with a factor up to 42 was achieved. In total, we show 135 blue SMOLEDs to demonstrate reproducibility. DOI : 10.1007/s11998-017-9964-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-9964-z.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29138
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Code-barres Cote Support Localisation Section Disponibilité 19230 - Périodique Bibliothèque principale Documentaires Disponible Small is beautiful - for longer / Matthias Wittmar in EUROPEAN COATINGS JOURNAL (ECJ), N° 4/2009 (04/2009)
[article]
Titre : Small is beautiful - for longer : Europe-wide project develops new approaches to corrosion protection Type de document : texte imprimé Auteurs : Matthias Wittmar, Auteur ; Michael Veith, Auteur Année de publication : 2009 Article en page(s) : p. 100-105 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Alliages
Anticorrosifs
Anticorrosion
Conducteurs organiques
Métaux -- Revêtements protecteurs
Nanoparticules
Nanotechnologie
Résistance aux brouillard salin
Revêtement autoréparant:Peinture autoréparante
Revêtements multicouches
Sol-gel, Procédé
Traîtements de surfaceIndex. décimale : 667.9 Revêtements et enduits Résumé : A European consortium known as multiprotect has developed a range of nanoparticle-based corrosion protection systems in an attempt to replace both chromate pretreatments and hard chrome coatings. Various types of coating showed enhanced salt spray resistance and in some cases self-healing properties. Some systems have been applied successfully under industrial conditions. Note de contenu : - Nanotechnology imitates benefits of classical systems
- Three novel types of nanoparticles created
- Sol-gel coatings protect light alloys and steel
- Multilayer coatings may offer advantages
- Surface treatment approach shows good results
- Conductive coatings also provide corrosion protection
- Nickel with nanoparticles replaces hard chromium
- Certain systems are tested on a larger scaleEn ligne : https://drive.google.com/file/d/1Y2H0dk4Y93dY4xZM5zwNLimg5d9-kw9S/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24161
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 4/2009 (04/2009) . - p. 100-105[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011199 - Périodique Bibliothèque principale Documentaires Disponible Study of mechanical behavior, deformation, and fracture of nano-multilayer coatings during microindentation and scratch test / Kaouthar Khlifi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 3 (05/2015)
PermalinkSyntheses of nano-multilayered TiN/TiSiN and CrN/CrSiN hard coatings / Jiang-Li Cao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 2 (03/2011)
PermalinkTesting adhesion of multi-coat systems / Karen Fischer in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 30, N° 10 (10/2013)
PermalinkThe future of anti-fouling coatings / Marco Heuer in EUROPEAN COATINGS JOURNAL (ECJ), N° 3 (03/2022)
PermalinkThree-coat & epoxy mastic bridge coating systems in adverse environments / Saiada Fuadi Fancy in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 35, N° 5 (05/2018)
PermalinkPermalinkTransparent UV-cured clay/UV-based nanocomposite coatings on wood substrates : surface roughness and effect of relative humidity on optical properties / William Nguegang Nkeuwa in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 3 (05/2017)
PermalinkTreatise on conducting polymers for corrosion protection - Advanced approach / Buddhabhushan P. Salunkhe in PAINTINDIA, Vol. LXVI, N° 1 (01/2016)
PermalinkTwo-coat polyaspartic urethane coatings protect Virginia steel bridges for over a decade / Ahren Olson in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 33, N° 1 (01/2016)
PermalinkTwo-layer powder coating protects generators in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 14, N° 4 (2021)
PermalinkUltrasonic nebulization-assisted layer-by-layer assembly for spray coating of multilayered, multicomponent, bioactive nanostructures / Skylar S. Stewart-Clark in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 2 (03/2011)
PermalinkUniform 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)
PermalinkPermalinkVisualization analysis of a multilayer foam development process in microcellular injection molding / T. Yamada in INTERNATIONAL POLYMER PROCESSING, Vol. XXVII, N° 3 (07/2012)
PermalinkWood surfaces protected with transparent multilayer UV-cured coatings reinforced with nanosilica and nanoclay. Part I : morphological study and effect of relative humidity on adhesion strength / William Nguegang Nkeuwa in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 3 (05/2014)
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