The size of these particles lies between 0.1 to
100 μm. Microparticles
are considered to have an increased surface-to-volume ratio than at a
macroscale, therefore, depict a different behaviour. The larger microparticles can
be viewed without any assistance; however, the smaller particles require
magnification to be seen. Even with the visibility of the particles, the
structure of the particle is considered to be too small for a human eye to see.
The industrial microparticle is a magnetic core that is surrounded by the
second material. These particles are mixed with other substances which are used
for specified applications. The applications vary as it depends on the
properties of the outer shell. They can be used anywhere from separating
valuable metals from rock, leading to the purification of water. As stated above,
microparticles have a larger surface area in comparison to various other
materials, which causes certain particles to have different reactive behaviour
on small scales in comparison to large scales. The most common reactions
originate from certain metals. Upon exposure to these metals to wear and
friction, they can become highly volatile and even explosive in certain cases.
The use of microparticles is very diverse as it is being used as
conductive coatings, manufacturing of glass, formation of lubricants, nuclear reactors,
metallic alloys, and structural materials. It is also used as metal composites
for bearings and liners engines. Microparticles are also used as support
materials for the composition of precision metal powder catalysts which
are used to increase the conductivity. It is also used to create a metal matrix
for reducing friction. Microparticles are also used as a chromatography medium.
Because of its applications, it is also used as an adsorbent in the
defluoridation of drinking water. They are also used as air filters in vehicles
while enhancing the efficacy of filters by absorbing and decomposing carbon
monoxide leading to a decrease in environmental pollution.
