No 2, Vol. 5, 2003 


R.G. Reddy

Center for Green Manufacturing, Department of Metallurgical and Materials Engineering,
The University of Alabama, Tuscaloosa, AL 35487-0202, USA


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.

full paper (pdf, 288 Kb)