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Y. Sasikumar et al.
mainly favor the influence of cellular and molecular activities for the osseointegration process. Nanoscale surface leads to an increase in the initial adsorption of protein
and possesses excellent and high surface energy, which is essential to the implant
surface for the regulation of the cellular interactions. The adhesion’s impact will
also have surface properties with their charge distribution with the chemistry of the
material [14, 15].
Powder Metallurgy (PM) is defined as “the art and science of the production of fine
metal powders, and finished or semi-finished objects from a mixed or alloyed powder
of an individual with/without inclusion with non-metallic constituents.” Powder
metallurgy is a technique in which the production of metal powders was involved
and the powders’ conversion into useful engineering structures by compacting the
mixture in a rigid die. Due to the weak bond formation and friction, the powders
are densified through deformation, and the particles are kept under pressure, and
the subsequent heating of the compacted powder bonds the particles together. The
process is simple because of the operations required to produce a component is relatively easy to understand. However, the component of the characteristics has become
more difficult to work when it becomes more precise. The control of mechanical and
physical properties increases in complexity, depending on the required characteristics. Powder Metallurgy process has a special advantage as the material wastage is
minimum compared to the conventional melting route. To produce complex metal
shapes to exact dimensions at high rates and economical prices, the PM process is
widely used [14, 15].
This technique is frequently used in powder metallurgy for making an immiscible
system of alloys, nanocrystalline phases, composite materials, and ceramic materials
from elemental powders are termed as “mechanical alloying (MA).” MA is a technique that consists of continuous welding, repeated fracturing with rewelding, and
cold fracturing of powder particles mixed with fabricating extremely fine microstructure. It is an energy-and time-consuming process and is used to alloy the elements
that are normally difficult to combine by conventional melting techniques. Mechanical alloying mainly refers to a mechanically induced solid-state chemical reactions.
These chemical reactions are mainly controlled by the diffusion rates of reactants,
and the initial reactant geometry through the barrier products.
MA can overcome many limitations experienced by other conventional methods
such as the processing of materials with widely varying densities. This technique
is generally employed for the systems, where the equilibrium solid solubility is
limited to its solid solubility extension. This process is mainly used for powder
production, which has a fine microstructural scale for alloying incompatible materials. During MA, the solid-state reaction proceeds across the interface of different
components under intense mechanical deformation process. This results in the formation of several metastable phases, including quasicrystals. For reasonable routes, the
elevated temperature is normally employed in this technique. In MA, a high energy
ball mill is placed with a powder charged particles of suitable and proper grinder
medium. The mills are usually one of the three configurations: vertical ball mill,
vibratory ball mill, and conventional ball mill. In the MA process, the powder particles are plastically deformed by a periodic treatment with colliding balls. Thus, lattice
Y. Sasikumar et al.
mainly favor the influence of cellular and molecular activities for the osseointegration process. Nanoscale surface leads to an increase in the initial adsorption of protein
and possesses excellent and high surface energy, which is essential to the implant
surface for the regulation of the cellular interactions. The adhesion’s impact will
also have surface properties with their charge distribution with the chemistry of the
material [14, 15].
Powder Metallurgy (PM) is defined as “the art and science of the production of fine
metal powders, and finished or semi-finished objects from a mixed or alloyed powder
of an individual with/without inclusion with non-metallic constituents.” Powder
metallurgy is a technique in which the production of metal powders was involved
and the powders’ conversion into useful engineering structures by compacting the
mixture in a rigid die. Due to the weak bond formation and friction, the powders
are densified through deformation, and the particles are kept under pressure, and
the subsequent heating of the compacted powder bonds the particles together. The
process is simple because of the operations required to produce a component is relatively easy to understand. However, the component of the characteristics has become
more difficult to work when it becomes more precise. The control of mechanical and
physical properties increases in complexity, depending on the required characteristics. Powder Metallurgy process has a special advantage as the material wastage is
minimum compared to the conventional melting route. To produce complex metal
shapes to exact dimensions at high rates and economical prices, the PM process is
widely used [14, 15].
This technique is frequently used in powder metallurgy for making an immiscible
system of alloys, nanocrystalline phases, composite materials, and ceramic materials
from elemental powders are termed as “mechanical alloying (MA).” MA is a technique that consists of continuous welding, repeated fracturing with rewelding, and
cold fracturing of powder particles mixed with fabricating extremely fine microstructure. It is an energy-and time-consuming process and is used to alloy the elements
that are normally difficult to combine by conventional melting techniques. Mechanical alloying mainly refers to a mechanically induced solid-state chemical reactions.
These chemical reactions are mainly controlled by the diffusion rates of reactants,
and the initial reactant geometry through the barrier products.
MA can overcome many limitations experienced by other conventional methods
such as the processing of materials with widely varying densities. This technique
is generally employed for the systems, where the equilibrium solid solubility is
limited to its solid solubility extension. This process is mainly used for powder
production, which has a fine microstructural scale for alloying incompatible materials. During MA, the solid-state reaction proceeds across the interface of different
components under intense mechanical deformation process. This results in the formation of several metastable phases, including quasicrystals. For reasonable routes, the
elevated temperature is normally employed in this technique. In MA, a high energy
ball mill is placed with a powder charged particles of suitable and proper grinder
medium. The mills are usually one of the three configurations: vertical ball mill,
vibratory ball mill, and conventional ball mill. In the MA process, the powder particles are plastically deformed by a periodic treatment with colliding balls. Thus, lattice