Characterization and adhesion strength study of detonation-sprayed MoB–CoCr alloy coatings on 2Cr13 stainless steel substrate / Heping Lv in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 6 (11/2010)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 6 (11/2010) . - p. 801-807 Titre : Characterization and adhesion strength study of detonation-sprayed MoB–CoCr alloy coatings on 2Cr13 stainless steel substrate Type de document : texte imprimé Auteurs : Heping Lv, Auteur ; Pulin Nie, Auteur ; Yonggen Yan, Auteur ; Jun Wang, Auteur ; Baode Sun, Auteur Année de publication : 2010 Article en page(s) : p. 801-807 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion Alliages Caractérisation Chrome Cobalt Diffractométrie de rayons X Eléments finis, Méthode des Microscopie électronique à balayage Microscopie électronique en transmission Molybdène Revêtement métallique Index. décimale : 667.9 Revêtements et enduits Résumé : A novel MoB–CoCr alloy coating was deposited onto stainless steel (2Cr13) substrate using a detonation gun (D-gun) spraying technique. Microstructures of the powder and coating were investigated by X-ray diffraction (XRD), scanning election microscopy (SEM), and transmission electron microscopy (TEM), and a quantitative determination of the adhesion strength of the coating was calculated by combination of modified four-point bending (4PB) test and finite element analysis (FEA) simulation. The results show that the coating mainly consists of ternary transition metal boride matrix phases (CoMo2B2, MoCoB) and binary borides (MoB and CrB). Nanocrystalline grains with a size of 50–100 nm were observed in the coating. The average energy release rate and phase angle are 191.2 J m−2 and 41.7º, respectively, which show strong bond strength compared to other reported values. DOI : 10.1007/s11998-009-9189-x En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9189-x.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10408 [article]

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Dry abrasion property of TiN-matrix coating deposited by reactive High Velocity Oxygen Fuel (HVOF) spraying / Zhengping Mao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 2 (03/2010)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 2 (03/2010) . - p. 253-259 Titre : Dry abrasion property of TiN-matrix coating deposited by reactive High Velocity Oxygen Fuel (HVOF) spraying Type de document : texte imprimé Auteurs : Zhengping Mao, Auteur ; Jing Ma, Auteur ; Jun Wang, Auteur ; Baode Sun, Auteur Année de publication : 2010 Article en page(s) : p. 253-259 Note générale : Bibliogr. Langues : Américain (ame) Tags : 'Pulvérisation  réactive'  'Projection  flamme  oxygène-carburant  haute  vitesse'  (HVOF)  'Abrasion  sèche  'Auto-lubrifiant'  'Revêtement  nitrure  titane' Index. décimale : 667.9 Revêtements et enduits Résumé : A TiN-matrix coating with a thickness of about 400 μm was prepared by reactive high velocity oxygen fuel (HVOF) spraying on carbon steel in air. The phase composition, microhardness, and antiabrasion properties of the coating were investigated using x-ray diffraction (XRD), an energy dispersive spectrometer (EDS), a scanning electron microscope (SEM), a Vickers microhardness tester, and block-on-ring abrasive equipment. The abrasion mechanism of TiN-matrix coating under dry abrasion conditions was also discussed. The results indicate that the composition of the coating is main phases of TiN and TiN0.3, minor phases of Ti2O3, and TiO2. The TiN-matrix coating possesses high microhardness and relatively good toughness. Furthermore, the friction coefficient of the coating decreases with the increment of applied load. The interstratified distribution of titanium oxides can act as a solid lubricant during the wear test. The main abrasion mechanism of the TiN-matrix coating is adhesion wear. In addition, the coating with self-lubricating property can improve the antiwear property of the substrate significantly. DOI : 10.1007/s11998-009-9180-6 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9180-6.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9071 [article]

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Eco-friendly silane as corrosion inhibitor for dual self-healing anticorrosion coatings / Jialiang Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 5 (09/2022)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 5 (09/2022) . - p. 1381-1391 Titre : Eco-friendly silane as corrosion inhibitor for dual self-healing anticorrosion coatings Type de document : texte imprimé Auteurs : Jialiang Liu, Auteur ; Dashuai Yan, Auteur ; Zhenhua Zhang, Auteur ; Yanli Wang, Auteur ; Dalei Song, Auteur ; Tao Zhang, Auteur ; Jingyuan Liu, Auteur ; Fei He, Auteur ; Meng Zhang, Auteur ; Jun Wang, Auteur Année de publication : 2022 Article en page(s) : p. 1381-1391 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs Anticorrosion Caractérisation Revêtement autoréparant Revêtements organiques Revêtements protecteurs Silanes Index. décimale : 667.9 Revêtements et enduits Résumé : Corrosion resistance and active protection performance of organic coatings can be improved by incorporation of corrosion inhibitor-loaded nanocontainers. Herein, 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane (FTES) as a green corrosion inhibitor was encapsulated in hollow mesoporous silica (HMS). FTES-loaded HMS (FHMS) was embedded in an epoxy coating on the surface of the magnesium (Mg) alloy. Artificial defect in FHMS-loaded epoxy coating was made by needle punching. The long-term anticorrosion behavior and self-healing properties of the modified coating were evaluated by electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). In all cases, FHMS can enhance corrosion resistance of the epoxy coating. Among all the FHMS-loaded coatings, the coating containing 0.5 wt% FHMS (FHMS-0.5%) still exhibits excellent corrosion protection performance after 2688 h of immersion. Meanwhile, it shows superior self-healing ability in the scratched areas. These are attributed to the fact that FTES released from HMS nanoparticles can interact with the epoxy coating and the Mg alloy substrate. Moreover, FTES silane can also form a crosslinked Si-O-Si network by itself. Note de contenu : - EXPERIMENTAL : Materials - Substrate pretreatment - Preparation of HMS and FHMS - Preparation of coatings - Characterization - RESULTS AND DISCUSSION : Characterization of HMS and FHMS - Self-healing properties of different FHMS coatings - Anticorrosion and self-healing mechanism - Table 1 : Textural data for the HMS and FHMS samples DOI : https://doi.org/10.1007/s11998-022-00608-4 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00608-4.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38277 [article]

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Excellent water resistance and mechanically robust waterborne polyurethane-acrylate based on dithiol post-chain extension / Zhiqiang Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 4 (07/2020)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 4 (07/2020) . - p. 1065-1074 Titre : Excellent water resistance and mechanically robust waterborne polyurethane-acrylate based on dithiol post-chain extension Type de document : texte imprimé Auteurs : Zhiqiang Liu, Auteur ; Hongxiang Chen, Auteur ; Gang Hu, Auteur ; Jun Wang, Auteur ; Yufei Xin, Auteur ; Chuanxi Xiang, Auteur ; Yu Zhou, Auteur Année de publication : 2020 Article en page(s) : p. 1065-1074 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation Copolymère uréthane acrylate Polymères en émulsion Résistance à l'humidité:Résistance à l'eau Résistance à la traction Revêtements -- Propriétés mécaniques Revêtements en phase aqueuse Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : There is a trade-off between water resistance and mechanical properties of the waterborne polyurethane film. Aiming to solve this problem, the waterborne polyurethane-acrylate (WPUBH) was prepared by post-chain extension of dithiol instead of diamine, which could improve the storage stability and reduce the water absorption rate due to the absence of urea groups, and by terminating with hydroxyethyl acrylate, which could reduce the water absorption rate and improve the mechanical properties at the same time deriving from the crosslinking of double bonds after heating. The rate of water absorption for WPUBH-2 film decreased down to 2.87%, and the tensile strength reached 8.5 MPa. The water resistance and the mechanical properties of WPUBH obtained a good balance compared with those of the carboxylate-based waterborne polyurethane-acrylate in the previous reports. They had excellent bonding properties for wood joints, and the tensile shear strength was up to 4.53 MPa. Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of waterborne polyurethane-acrylate emulsion - Instruments and characterization methods - RESULTS AND DISCUSSION : Preparation of WPUBH emulsion - The structure of WPUBH - The performance of WPUBH DOI : https://doi.org/10.1007/s11998-020-00332-5 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00332-5.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34393 [article]

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Properties of TiN-matrix coating deposited by reactive HVOF spraying / Zhengping Mao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 2 (06/2009)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 2 (06/2009) . - p. 243-250 Titre : Properties of TiN-matrix coating deposited by reactive HVOF spraying Type de document : texte imprimé Auteurs : Zhengping Mao, Auteur ; Jing Ma, Auteur ; Jun Wang, Auteur ; Bao-de Sun, Auteur Année de publication : 2009 Article en page(s) : p. 243-250 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier au carbone Anticorrosion Métaux -- Revêtements protecteurs Nitrure de titane Index. décimale : 667.9 Revêtements et enduits Résumé : TiN-matrix coating was prepared by reactive high velocity oxygen fuel (HVOF) spraying on carbon steel based on the self-propagating high temperature synthesis (SHS) technique in air. The phase composition, structures, and properties of TiN-matrix coating were analyzed using XRD, EDS, SEM and Vickers microhardness equipment. The anti-corrosion property in nearly neutral 3.5 w t% NaCl electrolytic solution was measured. The Weibull distribution of Vickers microhardness at different loads and their linear fitting were analyzed. The apparent fracture toughness of the coating was also calculated. The coating is composed of main phases (TiN, TiN0.3), minor phases (Ti2O3, TiO2), and porosity. The anti-corrosion property of an HVOF-sprayed TiN-matrix coating in electrolytic solution is superior to that of AISI 316L stainless steel. The microhardness values from 1137HV0.05 to 825HV1 are relatively high and have indentation size effect (ISE). With the increment of m, which increases with the increment of applied load, the microhardness values are more concentrated. The average value of apparent fracture toughness Kic is 4.62MPa}. m1/2. It is higher than that of reactive plasma sprayed (RPS) TiN coating, which reflects the good toughness of a TiN-matrix coating deposited by reactive HVOF spraying. DOI : 10.1007/s11998-008-9105-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9105-9.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5625 [article]

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Study of the properties of novel hybrid coatings under the influence of phase compatibility / Huang Dong in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 4 (07/2016)  

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