Facile synthesis of nano-particles attached spherical Ti-6Al-4V powder based on plasma spheroidization

An Overview of Thermal Plasma Arc Systems for Treatment of Various Wastes in Recovery of Metals

“…Syngas could used by industries for production of heat and electricity; liquid fuel production; or for chemical products such as hydrogen, ammonia, and methanol [60][61][62]. Polypropylene granules, being the representative of plastic wastes, show the feasibility of plasma gasification to convert end-of-life plastics In addition, low-dimensional nanomaterials are one step ahead of various materials made by thermal plasma methods such as glass and alloys [15,54]. Plasma spheroidization, which allows an easy synthesis of nanoparticles attached to spherical alloy powder, is carried out by vaporization and condensation of raw powder, which undergoes a steep variation in temperature [54,55].…”

“…Polypropylene granules, being the representative of plastic wastes, show the feasibility of plasma gasification to convert end-of-life plastics In addition, low-dimensional nanomaterials are one step ahead of various materials made by thermal plasma methods such as glass and alloys [15,54]. Plasma spheroidization, which allows an easy synthesis of nanoparticles attached to spherical alloy powder, is carried out by vaporization and condensation of raw powder, which undergoes a steep variation in temperature [54,55]. Spherical powder prepared by thermal plasma synthesis is not only used for powder metallurgy or additive manufacturing, but also as materials in the process synthesis of furnished coatings for surface protection [56].…”

“…An electric arc furnace was used in Australia for smelting sand ilmenite. QIT, Canada implemented a carbothermic reduction process for making TiO 2 -rich slag [53,54]. Thermal plasma melting of ilmenite separated titania and iron into the forms of titania-rich slag and metallic iron, respectively.…”

“…Thermal plasma processing reduced the metallized ilmenite into Ti-rich slag, with accumulating iron as the bulk form in the slag that could be separated easily from the slag. After the separation of metallic iron, the remaining Ti-rich slag is one of the sources for the TiO 2 pigment for industries [54].…”

“…Figure 15 depicts a scheme of the processing method by thermal plasma, with the initial and final product. In addition, low-dimensional nanomaterials are one step ahead of various materials made by thermal plasma methods such as glass and alloys [15,54]. Plasma spheroidization, which allows an easy synthesis of nanoparticles attached to spherical alloy powder, is carried out by vaporization and condensation of raw powder, which undergoes a steep variation in temperature [54,55].…”