Abstract
Boron carbide synthesized by using coaxial magnetoplasma accelerator with graphite electrodes was purified by two different ways. XRD-investigations showed content changing and respectively powder purification. Moreover TEM-investigations demonstrated morphology changing of product under purification that was discussed in the work.
Highlights
Boron carbide attracts a great interest because of low weight, high hardness, high chemical and temperature resistance and neutron absorption capability [1]
Graphite intensity increasing demonstrate that heat treatment temperature was not enough to oxidize the carbon but boron carbide undergoes oxidation and mass lose with decreasing of intensity on XRD-pattern
TEM-investigations of powder product shows that particles undergoes morphology changing after heat treatment in comparison with initial powder as it can be seen at figure 2
Summary
Boron carbide attracts a great interest because of low weight, high hardness, high chemical and temperature resistance and neutron absorption capability [1]. Obtained product consists of crystalline boron carbide with a small amount of impurities such as graphite and boron oxide. In the present study different efforts to purify synthesized powder were done and as a result on of them lead to morphology changing without any crystal structure modification.
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