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Iron–chromium alloy nanoparticles produced by pulsed sonoelectrochemistry / Valentina Zin in Acta materialia, Vol. 58 N° 1 (Janvier 2010) 

Public ISBD [article]  in Acta materialia > Vol. 58 N° 1 (Janvier 2010) . - pp. 311–319 Titre : Iron–chromium alloy nanoparticles produced by pulsed sonoelectrochemistry : Synthesis and characterization Type de document : texte imprimé Auteurs : Valentina Zin, Auteur ; Manuele Dabalà, Auteur Année de publication : 2010 Article en page(s) : pp. 311–319 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Nanocrystalline  materials  Nanostructure  Electrochemistry  Iron  alloys  Ultrasound Résumé : This study describes synthesis of Fe–Cr alloy nanoparticles by using a method which couples electrodeposition of metals with the employment of high power ultrasound. The production of alloyed nanoparticles was performed using a 20 kHz titanium alloy horn ultrasound generator, a “sonoelectrode” generating short current pulses (tON) triggered and followed immediately by ultrasonic pulses (tUS). A rest time (tr) restores the initial conditions close to the sonoelectrode. The final product is a suspension of nanoparticles with high purity and high surface/volume ratio, which could be controlled by varying process parameters like time management and current density. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645409006053 [article] Iron–chromium alloy nanoparticles produced by pulsed sonoelectrochemistry : Synthesis and characterization [texte imprimé] / Valentina Zin, Auteur ; Manuele Dabalà, Auteur . - 2010 . - pp. 311–319. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 1 (Janvier 2010) . - pp. 311–319 Mots-clés : Nanocrystalline  materials  Nanostructure  Electrochemistry  Iron  alloys  Ultrasound Résumé : This study describes synthesis of Fe–Cr alloy nanoparticles by using a method which couples electrodeposition of metals with the employment of high power ultrasound. The production of alloyed nanoparticles was performed using a 20 kHz titanium alloy horn ultrasound generator, a “sonoelectrode” generating short current pulses (tON) triggered and followed immediately by ultrasonic pulses (tUS). A rest time (tr) restores the initial conditions close to the sonoelectrode. The final product is a suspension of nanoparticles with high purity and high surface/volume ratio, which could be controlled by varying process parameters like time management and current density. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645409006053