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Effect of plasma treatment on the tribological and adhesion performance of a polymer coating deposited on different metallic substrates / Ahmed F. Abdelaal in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 6 (11/2022)
[article]
Titre : Effect of plasma treatment on the tribological and adhesion performance of a polymer coating deposited on different metallic substrates Type de document : texte imprimé Auteurs : Ahmed F. Abdelaal, Auteur ; M. Abdul Samad, Auteur ; Akeem Yusuf Adesina, Auteur ; M. M. A. Baig, Auteur Année de publication : 2022 Article en page(s) : p. 1673-1686 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Epaisseur -- Mesure
Métaux -- Revêtements poudre
Polyéthylène à ultra haut poids moléculaire
Revêtements organiques
Rugosité
Technique des plasmas
Traîtements de surface
Tribologie (technologie)
Usure (mécanique)Index. décimale : 667.9 Revêtements et enduits Résumé : Plasma treatment is a technique accepted universally for improving the adhesion of coatings to substrates because of its ease of use, environmental friendliness, and its adaptability. Hence, this research aims to further explore this technique and specifically investigate the effect of air–plasma treatment of different substrates (stainless steel, copper, brass, titanium, and aluminum) on the adhesion and tribological properties of an ultra-high molecular weight polyethylene polymer coating deposited on them. Several characterization techniques such as X-ray photoelectron spectroscopy, water contact angle, and roughness measurements are conducted to evaluate the surfaces before and after air–plasma treatment. Results showed that UHMWPE coating deposited on the plasma-treated stainless steel substrates demonstrated the best adhesion and tribological properties. This was attributed to the improved oxidation effect and the carbon cleaning effect of the plasma treatment on the stainless steel substrates as compared to other substrates. DOI : https://doi.org/10.1007/s11998-022-00639-5 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00639-5.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38489
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Code-barres Cote Support Localisation Section Disponibilité 23804 - Périodique Bibliothèque principale Documentaires Disponible Effect of process conditions (withdrawal rate and coating repetition) on morphological characteristics of sol–gel TiO2 film during dip coating / Wan Young Maeng in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 5 (09/2020)
[article]
Titre : Effect of process conditions (withdrawal rate and coating repetition) on morphological characteristics of sol–gel TiO2 film during dip coating Type de document : texte imprimé Auteurs : Wan Young Maeng, Auteur ; Ji Hae Yoon, Auteur ; Dong Jin Kim, Auteur Année de publication : 2020 Article en page(s) : p. 1171–1193 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Dioxyde de titane
Dip-coating
Epaisseur -- Mesure
Morphologie (matériaux)
Sol-gel, Procédé
Spectroscopie d'impédance électrochimique
Surfaces -- Analyse
Taux de retraitIndex. décimale : 667.9 Revêtements et enduits Résumé : The effects of the process conditions (withdrawal rate and coating repetition) on the morphological characteristics of sol–gel TiO2 film during dip coating were studied. We carried out dip-coating experiments to observe the effect of the withdrawal rate, coating repetition, and heat treatment on morphological development (homogeneity, thickness, and defects) in coated film. Sol was prepared with acetic acid catalyst and ethyl acetoacetate chelating agent. Withdrawal rate varied between 0.4 and 3.2 mm/s. Multilayered coatings were prepared by conducting 1, 2, 3, 5, and 10 cycles of coating. Heat treatment was carried out for 30 min at 450°C in air. The properties of the TiO2 film were characterized by visual observation, SEM, FIB, FTIR, and electrochemical impedance spectroscopy (EIS). As the withdrawal rate increased, the homogeneity of the film decreased, while the thickness of the film increased to a certain limit without cracking. A homogeneous coating, without edge effect, formed at an intermediate withdrawal rate of 0.1–1 mm/s, conditions under which both viscous drag and capillarity feeding were active. As the number of coatings increased, the coating thickness increased and cracking increased. EIS tests were used to analyze internal defects in coatings. With repeated coating, defects in coatings increased. After a 30-min heat treatment at 450°C in air, pore resistance (Rpore) decreased approximately 20–30% compared to Rpore of specimens without heat treatment. This study confirmed that it is important to control the morphology to obtain optimum properties of TiO2 film as a coating for corrosion barriers, photocatalysts, and photoelectric and optical applications. Note de contenu : - Sol stability
- Coating surface morphology
- Coating thickness
- Defect evaluation using electrochemical impedance spectroscopy (EIS)DOI : https://doi.org/10.1007/s11998-020-00337-0 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00337-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34565
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Code-barres Cote Support Localisation Section Disponibilité 22303 - Périodique Bibliothèque principale Documentaires Disponible Effect of process parameters on shear layer thickness in injection molded short-glass fiber reinforced polypropylene / Mirigul Altan in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 5 (11/2018)
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Titre : Effect of process parameters on shear layer thickness in injection molded short-glass fiber reinforced polypropylene Type de document : texte imprimé Auteurs : Mirigul Altan, Auteur ; M. Demirci, Auteur Année de publication : 2018 Article en page(s) : p. 714-720 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse de variance En statistique, l'analyse de la variance (terme souvent abrégé par le terme anglais ANOVA : ANalysis Of VAriance) est un ensemble de modèles statistiques utilisés pour vérifier si les moyennes des groupes proviennent d'une même population. Les groupes correspondent aux modalités d'une variable qualitative (p. ex. variable : traitement; modalités : programme d'entrainement sportif, suppléments alimentaires ; placebo) et les moyennes sont calculés à partir d'une variable continue (p. ex. gain musculaire).
Ce test s'applique lorsque l'on mesure une ou plusieurs variables explicatives catégorielles (appelées alors facteurs de variabilité, leurs différentes modalités étant parfois appelées "niveaux") qui ont de l'influence sur la loi d'une variable continue à expliquer. On parle d'analyse à un facteur lorsque l'analyse porte sur un modèle décrit par un seul facteur de variabilité, d'analyse à deux facteurs ou d'analyse multifactorielle sinon. (Wikipedia)
Analyse mécanique dynamique
Composites à fibres de verre -- Moulage par injection
Distribution et orientation des fibres
Epaisseur -- Mesure
PolypropylèneIndex. décimale : 668.4 Plastiques, vinyles Résumé : Controlling fiber orientation and fiber distribution in plastic injection of glass reinforced polymers is important due to the improvement of the properties of the material. Variation in shear layer thickness of fiber distribution affects the properties of the injection moldings. In this study, 30 % glass fiber reinforced polypropylene was injected under various injection molding conditions in order to increase the shear layer thickness in which fiber orientation was parallel to the flow direction. The experimental study was carried out according to the Taguchi L9 orthogonal array. The mold temperature, nozzle temperature and injection rate were chosen as input parameters and the thickness of the shear layer was taken as output. Analysis of variance was also applied to observe the effectiveness of the process parameters on shear layer thickness. The shear layer thickness was measured over the images obtained by scanning electron microscopy. In order to investigate the dynamic mechanical behavior of the material depending on fiber distribution, dynamical mechanical analysis was applied. Storage modulus, loss modulus and tan delta values were obtained. It has been observed that higher mold temperature and nozzle temperature values increased shear layer thickness in injection molding of glass fiber reinforced polypropylene. It has been seen that 65 % of increment in shear layer thickness induced approximately 50 % of increment in storage modulus and loss modulus. Note de contenu : - EXPERIMENTAL STUDY : Material - Plastic injection molding - Measurement of the shear layer thickness - Dynamic mechanical analysis
- RESULTS AND DISCUSSION : Effect of parameters on shear layer thickness - Effect of shear layer thickness on dynamic mechanical analysisDOI : 10.3139/217.3585 En ligne : https://www.degruyter.com/document/doi/10.3139/217.3585/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31415
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Code-barres Cote Support Localisation Section Disponibilité 20352 - Périodique Bibliothèque principale Documentaires Disponible Effective help with corrosion protection / Hans Jürgen Jüngling in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 12, N° 4 (2019)
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Titre : Effective help with corrosion protection Type de document : texte imprimé Auteurs : Hans Jürgen Jüngling, Auteur Année de publication : 2019 Article en page(s) : p. 40-41 Langues : Anglais (eng) Catégories : Contrôle technique
Corrosion
Epaisseur -- Mesure
Mesure -- Instruments
Métaux -- Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : New measuring devices help inspection engineers to evaluate components that are prone to corrosion and to monitor protection activities. This makes it possible to prevent corrosion damage and the resulting depreciation. Note de contenu : - 2.5 billion dollars of damage
- Coating Thickness measurement with a dual probe
- Resistant to dust and water
- Fig. 1 : A valve in a pumped-storage hydropower plant : microorganisms, sediments and chlorides in the water can cause corrosion problems
- Fig. 2 : Inspecting corrosion protection coatings : A member of the maintenance team cheks the interior coating on a pump volute
- Fig. 3 : Easy to hold and operate : the coating thickness measurement device can be used even in almost inaccessible areas
- Fig. 4 : The dew point measuring device can easily be attached to ferrous substrates with a magnetPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33867
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Code-barres Cote Support Localisation Section Disponibilité 21377 - Périodique Bibliothèque principale Documentaires Disponible Effects of level and length of supplementation on leather characteristics of yearling boer and spanish wethers / R. C. Merkel in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 4 (04/2013)
[article]
Titre : Effects of level and length of supplementation on leather characteristics of yearling boer and spanish wethers Type de document : texte imprimé Auteurs : R. C. Merkel, Auteur ; Cheng-Kung Liu, Auteur ; Nicholas P. Latona, Auteur ; A. El Amma, Auteur ; A. L. Goetsch, Auteur Année de publication : 2013 Article en page(s) : p. 139-145 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Allongement (mécanique)
Allongement à la rupture
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux de chèvres
Cuirs et peaux de moutons
Epaisseur -- Mesure
Essais dynamiques
Glutaraldéhyde
Tannage au chrome
Traction (mécanique)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Thirty Boer × Spanish and 29 Spanish wethers were used in a trial to determine the effects of goat breed, supplementation level, and age on the mechanical properties of chrome-tanned and glutaraldehyde-tanned goat skin. Six Boer and five Spanish wethers were harvested at the beginning of the trial with the remaining animals assigned to four groups, having equal breed numbers, receiving either a high or low supplement amount daily. Two groups were harvested after 110 days and the remaining groups after an additional 108 days. Skins were removed by hand, split down the dorsal midline, and salted. The left half of each skin was chrome-tanned and the right half was tanned using a glutaraldehyde based tannage. Tanning goat skins using chromium resulted in stronger leather than that produced using glutaraldehyde. Increasing age led to decreased % elongation and increased leather stiffness. The effects of supplementation level were of lesser importance than tannage or age upon the strength characteristics of leather produced. Boer goat leather was thicker than Spanish goat leather, although tensile strength was unaffected by breed. Goat skins were not shaved to an equal thickness during the tanning process, perhaps leading to some of the breed differences seen, notably in % elongation and fracture energy. Therefore, further research is needed to evaluate characteristics of shaved skins. Note de contenu : - MATERIALS AND METHODS : Animals and treatments - Harvest and tannage measures - Leather testing - Statistical analyses
- RESULTS : Feedstuffs - Live and fresh skin weight - Leather thickness - % elongation - Fracture energy - Tensile strength - Young's modulusEn ligne : https://drive.google.com/file/d/1iIJDgwQvY0tbO_HB0Lisk7bM6NYH_IM7/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18089
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Code-barres Cote Support Localisation Section Disponibilité 14980 - Périodique Bibliothèque principale Documentaires Disponible Electronic inspection of a field painting project / Cory Allen in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 36, N° 1 (01/2019)
PermalinkEnsure accurate "dry film thickness" readings : 10 important things to know in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 33, N° 7 (07/2016)
PermalinkFibres kératiniques / Richard Rico in L'INDUSTRIE TEXTILE, N° 1328 (02/2001)
PermalinkFrom the spray pattern to the perfect finish in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 13, N° 4 (2020)
PermalinkGetting the right tool for every application in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 12, N° 3 (2019)
PermalinkHow many mils is your coating ? / Del Williams in SURFACE COATINGS INTERNATIONAL, Vol. 102.3 (06-07/2019)
PermalinkImpact of hybrid self-assembled nanophase particle-based sol–gel coatings on the localized corrosion behavior of modified 9Cr–1Mo steel in chloride medium / S. Ramya in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)
PermalinkInfluence of the cattle breed on the properties of crusts / Sandra Stenzel in INTERNATIONAL LEATHER MAKER (ILM), N° 45 (01-02/2021)
PermalinkInline layer thickness measurement / Joachim Jonuscheit in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 10 (10/2019)
PermalinkInoex met le "100%" à la portée de tous / Cyrille Giffard in CAOUTCHOUCS & PLASTIQUES, N° 783 (02/2000)
PermalinkMeasurement reliability over the entire life cycle in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 15, N° 1 (2022)
PermalinkMeasuring dry film coating thickness according to SSPC-PA 2 / William D. Corbett in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 30, N° 4 (04/2013)
PermalinkMechanical consequences of coating penetration / Margaret Joyce in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 69, N° 869 (06/1997)
PermalinkMechanical, thermal, and surface properties of fusion-bonded epoxy nanocomposite coatings / Baha Demir in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 4 (07/2023)
PermalinkMetrology for maritime corrosion protection in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 8, N° 3 (2015)
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