Development of inorganic fullerene (IF) like WS2
Joydip Joardar, S. Sudhakara Sarma, V. Mahender and Tata Narasinga Rao
Development of new commercially viable techniques for the bulk production of nanostructured inorganic fullerene (IF) like tungsten sulfide (WS2) is being pursued. Nano-IF-WS2 is the best known solid lubricant, which gives a very low coefficient of friction even under high load (~2,000 MPa).
Nanostructured WO3 precursors
Nanostructured IF-WS2 (about 30wt%)
Synthesized by new technique
Nanostructured W-C phases for fuel cell electrode
Joydip Joardar and Tata Narasinga Rao
WC based materials are widely used for various applications eg, cutting tools, wear resistant coatings, fuel cell electrodes, etc. New and inexpensive methods for the synthesis of nanostructured WC are being developed.
SEM of (a) as synthesized WO3+C before heat treatment (b) 1050oC, 0h (c) 1050oC, 4h (d) 1050oC, 12h
Weight fraction of WC, W2C and W at 1050oC
Nanosilver-candle filter technology has been successfully transferred to a company and the product is in the market with the brand name of PURITECH.
