Microstructure and mechanical properties of hafnium carbide coatings synthesized by reactive magnetron sputtering / Li Guanqun in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 3 (05/2010)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 3 (05/2010) . - p. 403-407 Titre : Microstructure and mechanical properties of hafnium carbide coatings synthesized by reactive magnetron sputtering Type de document : texte imprimé Auteurs : Li Guanqun, Auteur ; Geyang Li, Auteur Année de publication : 2010 Article en page(s) : p. 403-407 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Carbure d'hafnium Magnétron Microstructures Pulvérisation cathodique Revêtements:Peinture Index. décimale : 667.9 Revêtements et enduits Résumé : Hafnium carbide coatings with different carbon contents were synthesized in Ar–C2H2 mixture by reactive magnetron sputtering. Energy-dispersive X-ray, X-ray diffraction, scanning electron microscopy, atomic force microscopy, and nanoindentation were employed to characterize their microstructure and mechanical properties. The effects of C2H2 partial pressure on the composition, phase, microstructure, and mechanical properties of the coatings were investigated. The results show that hafnium carbide coatings can be synthesized at a low partial pressure of C2H2. The single-phase HfC coating with columnar crystal and favorable mechanical properties is obtained when the proportion of C2H2 partial pressure is only about 3.0% in the mixture, and the highest hardness and modulus are 27.9 and 255 GPa, respectively. The coating contains metal Hf and HfC phases and obtains low hardness under lower C2H2 partial pressure. When the C2H2 partial pressure is higher, the hardness and elastic moduli of acquired amorphous coatings decrease significantly. DOI : 10.1007/s11998-009-9225-x En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9225-x.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9820 [article]

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