The thermal plasma processing of fine powders

Magnetic properties of thermal plasma synthesized nanocrystalline nickel ferrite (NiFe2O4)

“…It provides high enthalpy which increases the reaction kinetics by several orders of magnitude and steep temperature gradient that enables rapid quenching and generation of the fine particles [6]. Due to such inherent advantages, thermal plasma processing has become a very useful technique for producing new kinds of nanomaterials.…”

“…However synthesis of mixed oxide nanophase materials has yet to be realized using this novel technique. Although Reddy et al have reported the synthesis of different alloys using thermal plasma route [6], very few attempts have been made to grow the nanomaterials of binary or ternary oxides.…”

Production of Nanoscale Titanium Diboride Powders

“…Precursors & their molar ratios Power (kW) Feed rate 10 5 (kg=s) Particle Size 10 9 (m) SiC [7,12] SiO 2 W CH 4 D 1 W 3 25.5 11.05 < 100 TiC [10] Ti [28]. The high yield in the latter literature was obtained by a series of post processing techniques used to remove the byproducts.…”

“…Production of AlN [4],ˇ0 0 -Al 2 O 3 and diamond [5] have been reported in the literature. Metallic and ceramic compounds such as magnesium, titanium carbide, and zinc ferrite have been synthesized using this processing technique [1][2][3][4][5][6][7][8][9][10]. Several composite materials such as Fe-TiN, FeTiC, Fe(Ti)-TiC, Al(Ti)-TiC, and Al-SiC [11][12][13] have also been successfully synthesized.…”

Magnetic properties of nanocrystalline CoFe2O4 synthesized by thermal plasma in large scale

“…Thermal plasma processing gives the clean reaction atmosphere which is required for the high purity materials. It provides high enthalpy which increases the reaction kinetics by several orders of magnitude and steep temperature gradient that enables rapid quenching and generation of the fine particles [3].…”