Nano-Composites and Mechanical Alloying Via the Ball Milling Technique
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Author/Creator ORCID
Date
2006
Type of Work
Department
Physics
Program
Bachelor's Degree
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Abstract
The ball milling technique has been utilized to produce nano-composites and to ascertain the fundamental
parameters of the mechanochemical reaction and the mechanical alloying process. This is an innovative
method of material synthesis and metallic coating that, compared to the current methods, is very costeffective
and environmentally friendly, although it has not been thoroughly analyzed. There are some
general understandings of mechanical alloying, founded on the basic thermodynamics of the reaction, that
have been widely accepted. These include heat energy generated by both the collisions between steel balls
and the walls of the container and also between the balls themselves, heat transfer by the walls of the
container, and heat absorbed by the layer of powder caught between the colliding surfaces. There are many
fundamental parameters that require further study. Some parameters that have been investigated here
include time of ignition or time of mechanchemical reaction; temperature change; and change of ignition
time with respect to mass and number of steel balls, as well as with respect to powder mass. These
theoretical parameters have been investigated and confirmed through experimental data. Knowledge of the
fundamental parameters in turn helps the understanding of the ball milling process.