Abstract
This study investigated the effect of three different ball materials on the metal-based carbon nanotube (CNT) composites used as surface coatings on metal-powder to fabricate high-quality nanocomposites. The effect of ball material, different rotation speeds, and milling times on the coating characteristics of the metal-based nanocomposite were studied. The mechanical dry coating was used to fabricate CNT coatings on the surface of copper powder particles via two different ball milling machines such as a traditional ball mill and a stirred ball mill. We explored the effect of the milling media of the ball mill under different ball materials and ball sizes on the metal powder during the ball milling process with DEM simulation. Using discrete element method simulation to obtain the average velocity, force, and, kinetic energy of the milling media in a low and high energy ball mills.
Highlights
IntroductionProcess that has been developed for obtaining metal matrix nanocomposites through the dry surface coating of metal powders [1,2,3]
In recent years, nanocomposites have been fabricated by means of the mechanical alloying (MA)process that has been developed for obtaining metal matrix nanocomposites through the dry surface coating of metal powders [1,2,3]
The scanning electron electron microscopy microscopy (SEM) results show the particle size and shape of copper based carbon nanotube (CNT) nanocomposites ball milled with three kinds of milling media such as alumina balls, zirconia balls, stainless steel balls and milled with three kinds of milling media such as alumina balls, zirconia balls, stainless steel balls and under the various experimental conditions using two different ball milling machines
Summary
Process that has been developed for obtaining metal matrix nanocomposites through the dry surface coating of metal powders [1,2,3]. MA is very simple process and generic term for processing of metal powders in high energy ball mills and economically viable process with important technical advantages. The particle coating is used to modify the properties of powders by using mechanical forces to attach the guest particles to the surface of the host particles. The coating of fine guest particles onto the surface of host particles is accomplished through shear and impact forces generated during the ball milling process [2,6,7]. The use of ball milling machines for the fabrication of metal-based nanocomposites has been extensively investigated [8,9,10,11]. The milling process can be performed using various types of ball mills, namely, planetary, traditional, horizontal, and attritor ball mills [12]
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