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Artículo

Analysis of the Cu-Al Milling Stages Through the Microstructure Evolution Studied by TEM and SEM

Giordana, María FlorenciaIcon ; Muñoz Vásquez, Natalia; Esquivel, Marcelo Ricardo OscarIcon ; Zelaya, Maria EugeniaIcon
Fecha de publicación: 01/05/2017
Editorial: Springer New York LLC
Revista: Metallography, Microstructure, and Analysis
ISSN: 2192-9270
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Astronomía

Resumen

Mechanical alloying of Cu-16 at.%Al and Cu-30 at.%Al was performed using both a planetary and a horizontal milling devices. The starting powders were high-purity Cu and Al. The different stages of milling were identified and characterized as initial, intermediate, final, and completion. The obtained microstructures were investigated by scanning electron microscopy and transmission electron microscopy. The evolution of the microstructure was studied considering the particle size variation. A decrease in the particle size was found as the Al content increases. The evolution of the nanostructure was studied considering the grain size variation. No marked changes on the nanostructure were detected during milling regardless either the type of mill used or composition selected. Mean grain sizes’ values found were between 10 nm and 26 nm for each stage of milling. Power consumption of the milling process was calculated at laboratory scale to analyze the chances of a potential scaling up of the milling process. Starting aggregation state, microstructure and dominant phase changes, and evolution of mechanical alloying stages were considered. Performance of milling was compared to traditional high-temperature methods to compare the advantages and disadvantages of both synthesis methods.
Palabras clave: Cu-Al , Mechanical Alloying , Microstructure Evolution , Power Consumption , Sem , Tem
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/65172
URL: https://link.springer.com/article/10.1007/s13632-017-0339-8
DOI: https://dx.doi.org/10.1007/s13632-017-0339-8
Colecciones
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos(IFIR)
Articulos de INST.DE FISICA DE ROSARIO (I)
Articulos(IITCI)
Articulos de INSTITUTO DE INVESTIGACIONES EN TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA
Citación
Giordana, María Florencia; Muñoz Vásquez, Natalia; Esquivel, Marcelo Ricardo Oscar; Zelaya, Maria Eugenia; Analysis of the Cu-Al Milling Stages Through the Microstructure Evolution Studied by TEM and SEM; Springer New York LLC; Metallography, Microstructure, and Analysis; 6; 2; 31-4-2017; 139-149
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