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Nanoscale materials can be processed by several techniques such as rapid
solidification, plasma processing, in-situ chemical reaction, chemical vapor deposition,
high energy ball milling, sol-gel method, etc. In-situ processing of nanomaterials has
immense potential over the conventional nanoscale materials due to several advantages
such as inherent chemical stability, lack of impurities, and fine dispersion. This paper
deals with the thermal plasma technique in producing nanoscale metal, ceramic and
composite powders and the various process parameters that influence the final product.
Magnesium metal powders, ceramic powders such as SiC, B4C, TiC and TiN, and composite
powders such as Al-SiC, Fe-TiC, Fe-TiN have been successfully synthesized in our plasma
processing laboratory. In this paper, the results of the synthesis of various powders
are presented in detail.
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