Influence of ethanol on the HAp coatings prepared by hydrothermal electrodeposition on C/C composites / Yinghua Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 1 (01/2010)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 1 (01/2010) . - p. 67-71 Titre : Influence of ethanol on the HAp coatings prepared by hydrothermal electrodeposition on C/C composites Type de document : texte imprimé Auteurs : Yinghua Li, Auteur ; Huang Jianfeng, Auteur ; Guangyan Zhu, Auteur ; Cao Liyun, Auteur ; Xierong Zeng, Auteur Année de publication : 2010 Article en page(s) : p. 67-71 Note générale : Bibliogr. Langues : Américain (ame) Tags : Carbon/carbon  composites  Hydroxyapatite  Coatings  Ethanol Index. décimale : 667.9 Revêtements et enduits Résumé : Hydroxyapatite (HAp) coatings were prepared on carbon/carbon (C/C) composites with a novel hydrothermal electrodeposition method. The as-prepared HAp coatings were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectrum, and scanning electron microscope (SEM) analyses. The influence of ethanol on the phases and microstructures of HAp coatings was investigated. Results show that the coatings’ crystallization shows little change with the increase in ethanol content up to 15%, but the density, homogeneousness, and adhesion with the substrate of HAp coatings obviously improved. The deposition mechanism of the HAp coating is also discussed. Thus, it is helpful to get dense and good-adhesion HAp coatings when ethanol is added into the solution during the hydrothermal electrodeposition process. DOI : 10.1007/s11998-008-9152-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9152-2.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8348 [article]

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Phase, microstructure, and oxidation resistance of yttrium silicates coatings prepared by a hydrothermal electrophoretic deposition process for C/C composites / Liu Miao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 4 (12/2009)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 4 (12/2009) . - p. 531-535 Titre : Phase, microstructure, and oxidation resistance of yttrium silicates coatings prepared by a hydrothermal electrophoretic deposition process for C/C composites Type de document : texte imprimé Auteurs : Liu Miao, Auteur ; Wu Jianpeng, Auteur ; Cao Liyun, Auteur ; Deng Fei, Auteur ; Zhang Yutaog, Auteur ; Huang Jianfeng, Auteur Année de publication : 2009 Article en page(s) : p. 531-535 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antioxydants Carbure de silicium Composites à fibres de carbone Dépôt électrophorétique Silicate d'yttrium Index. décimale : 667.9 Revêtements et enduits Résumé : Oxidation-resistant yttrium silicates coatings for SiC precoated carbon/carbon composites were prepared by a novel hydrothermal electrophoretic deposition process. Sonochemical-synthesized yttrium silicates nanocrystallites, isopropanol, and iodine were respectively used as source materials, solvent, and charging agent during the deposition. Phase compositions, surface and cross-section microstructures of the as-prepared multilayer coatings were characterized by an X-ray diffractometer (XRD) and a scanning electron microscopy (SEM). The influence of deposition temperatures on the phase, microstructure, and oxidation resistance of the multilayer coated C/C composites was particularly investigated. Results show that the as-prepared outer coatings are composed of yttrium silicates crystallites with a main phase of Y2Si2O7 and Y2SiO5. The thickness and density of the yttrium silicates coatings are improved with the increase of deposition temperature. Compared with SiC coating prepared by pack cementation, the multilayer coatings prepared by pack cementation with a later hydrothermal electrophoretic deposition process exhibit better antioxidation properties. The as-prepared multilayer coatings can effectively protect C/C composites from oxidation at 1773 K in air for 35 h with a weight loss of 0.32 x 10-3 g/cm2. DOI : 10.1007/s11998-008-9122-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9122-8.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7717 [article]

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