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Synthesis and Characterization of Nanocrystalline Al-20 at. % Cu Powders Produced by Mechanical Alloying

Mechanical alloying is a powder processing technique used to process materials farther from equilibrium state. This technique is mainly used to process difficult-to-alloy materials in which the solid solubility is limited and to process materials where nonequilibrium phases cannot be produced at room temperature through conventional processing techniques. This work deals with the microstructural properties of the Al-20 at. % Cu alloy prepared by high-energy ball milling of elemental aluminum and copper powders. The ball milling of powders was carried out in a planetary mill in order to obtain a nanostructured Al-20 at. % Cu alloy. The obtained powders were characterized using scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). The structural modifications at different stages of the ball milling are investigated with X-ray diffraction. Several microstructure parameters such as the crystallite sizes, microstrains and lattice parameters are determined

Metals, 2016, vol. 6, núm. 7, p. 145

MDPI (Multidisciplinary Digital Publishing Institute)

Author: Ben Makhlouf, Molka
Bachaga, Tarek
Suñol Martínez, Joan Josep
Dammak, Mohamed Chedly
Khitouni, Mohamed
Date: 2016 June 29
Abstract: Mechanical alloying is a powder processing technique used to process materials farther from equilibrium state. This technique is mainly used to process difficult-to-alloy materials in which the solid solubility is limited and to process materials where nonequilibrium phases cannot be produced at room temperature through conventional processing techniques. This work deals with the microstructural properties of the Al-20 at. % Cu alloy prepared by high-energy ball milling of elemental aluminum and copper powders. The ball milling of powders was carried out in a planetary mill in order to obtain a nanostructured Al-20 at. % Cu alloy. The obtained powders were characterized using scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). The structural modifications at different stages of the ball milling are investigated with X-ray diffraction. Several microstructure parameters such as the crystallite sizes, microstrains and lattice parameters are determined
Format: application/pdf
ISSN: 2075-4701
Document access: http://hdl.handle.net/10256/13072
Language: eng
Publisher: MDPI (Multidisciplinary Digital Publishing Institute)
Collection: Reproducció digital del document publicat a: http://dx.doi.org/10.1007/s10948-012-1632-z10.3390/met6070145
Articles publicats (D-F)
Is part of: Metals, 2016, vol. 6, núm. 7, p. 145
Rights: Attribution 4.0 Spain
Rights URI: http://creativecommons.org/licenses/by/4.0/es/
Subject: Aliatges
Alloys
Nanocristalls
Nanocrystals
Title: Synthesis and Characterization of Nanocrystalline Al-20 at. % Cu Powders Produced by Mechanical Alloying
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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