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Oxidation and crystallization mechanisms in plasma-sprayed Cu-based bulk metallic glass coatings / Junghwan Kim in Acta materialia, Vol. 58 N° 3 (Fevrier 2010) 

Public ISBD [article]  in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 952-962 Titre : Oxidation and crystallization mechanisms in plasma-sprayed Cu-based bulk metallic glass coatings Type de document : texte imprimé Auteurs : Junghwan Kim, Auteur ; Kicheol Kang, Auteur ; Sanghoon Yoon, Auteur Article en page(s) : pp. 952-962 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Bulk  metallic  glass  Atmospheric  plasma  spraying  Oxidation  Crystallization Index. décimale : 669 Métallurgie Résumé : Cu-based bulk metallic glass (BMG) coatings were built-up by the atmospheric plasma spraying (APS) process at different hydrogen flow rates. As the hydrogen flow rate increased, thermal energy in the plasma jet increased the melting state of the Cu-based BMG particles. Although it was expected that the difference in melting states would quantitatively affect the amorphous fractions in the coatings, both the amorphous fraction and the oxide content of the layers were independent of hydrogen flow rate. However, different melting states resulting from different hydrogen gas flow rates, and the subsequent oxidation which inevitably occurred during spraying, generated different crystallization processes in the coating. In this paper, crystallization mechanisms in plasma-sprayed BMG were studied using their microstructures. Specific analyses of the particles deposited at high travel speed and quenched in cold water also served for further understanding of the melting state and change in composition of the particles undergo during deposition. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235556%23 [...] [article] Oxidation and crystallization mechanisms in plasma-sprayed Cu-based bulk metallic glass coatings [texte imprimé] / Junghwan Kim, Auteur ; Kicheol Kang, Auteur ; Sanghoon Yoon, Auteur . - pp. 952-962. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 952-962 Mots-clés : Bulk  metallic  glass  Atmospheric  plasma  spraying  Oxidation  Crystallization Index. décimale : 669 Métallurgie Résumé : Cu-based bulk metallic glass (BMG) coatings were built-up by the atmospheric plasma spraying (APS) process at different hydrogen flow rates. As the hydrogen flow rate increased, thermal energy in the plasma jet increased the melting state of the Cu-based BMG particles. Although it was expected that the difference in melting states would quantitatively affect the amorphous fractions in the coatings, both the amorphous fraction and the oxide content of the layers were independent of hydrogen flow rate. However, different melting states resulting from different hydrogen gas flow rates, and the subsequent oxidation which inevitably occurred during spraying, generated different crystallization processes in the coating. In this paper, crystallization mechanisms in plasma-sprayed BMG were studied using their microstructures. Specific analyses of the particles deposited at high travel speed and quenched in cold water also served for further understanding of the melting state and change in composition of the particles undergo during deposition. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235556%23 [...]

Oxidation and crystallization mechanisms in plasma-sprayed Cu-based bulk metallic glass coatings / Junghwan Kim in Acta materialia, Vol. 58 N° 3 (Fevrier 2010) 

Public ISBD [article]  in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 952–962 Titre : Oxidation and crystallization mechanisms in plasma-sprayed Cu-based bulk metallic glass coatings Type de document : texte imprimé Auteurs : Junghwan Kim, Auteur ; Kicheol Kang, Auteur ; Sanghoon Yoon, Auteur Année de publication : 2011 Article en page(s) : pp. 952–962 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Bulk  metallic  glass  Atmospheric  plasma  spraying  Oxidation  Crystallization Résumé : Cu-based bulk metallic glass (BMG) coatings were built-up by the atmospheric plasma spraying (APS) process at different hydrogen flow rates. As the hydrogen flow rate increased, thermal energy in the plasma jet increased the melting state of the Cu-based BMG particles. Although it was expected that the difference in melting states would quantitatively affect the amorphous fractions in the coatings, both the amorphous fraction and the oxide content of the layers were independent of hydrogen flow rate. However, different melting states resulting from different hydrogen gas flow rates, and the subsequent oxidation which inevitably occurred during spraying, generated different crystallization processes in the coating. In this paper, crystallization mechanisms in plasma-sprayed BMG were studied using their microstructures. Specific analyses of the particles deposited at high travel speed and quenched in cold water also served for further understanding of the melting state and change in composition of the particles undergo during deposition. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645409006909 [article] Oxidation and crystallization mechanisms in plasma-sprayed Cu-based bulk metallic glass coatings [texte imprimé] / Junghwan Kim, Auteur ; Kicheol Kang, Auteur ; Sanghoon Yoon, Auteur . - 2011 . - pp. 952–962. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 952–962 Mots-clés : Bulk  metallic  glass  Atmospheric  plasma  spraying  Oxidation  Crystallization Résumé : Cu-based bulk metallic glass (BMG) coatings were built-up by the atmospheric plasma spraying (APS) process at different hydrogen flow rates. As the hydrogen flow rate increased, thermal energy in the plasma jet increased the melting state of the Cu-based BMG particles. Although it was expected that the difference in melting states would quantitatively affect the amorphous fractions in the coatings, both the amorphous fraction and the oxide content of the layers were independent of hydrogen flow rate. However, different melting states resulting from different hydrogen gas flow rates, and the subsequent oxidation which inevitably occurred during spraying, generated different crystallization processes in the coating. In this paper, crystallization mechanisms in plasma-sprayed BMG were studied using their microstructures. Specific analyses of the particles deposited at high travel speed and quenched in cold water also served for further understanding of the melting state and change in composition of the particles undergo during deposition. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645409006909