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Methods for Making Carbide-Metal Nanocomposite Powders

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
This chemical vapor synthesis process was designed so that a metal carbide precursor and a secondary metal precursor are separately or together fed into each evaporator in a reactor by specially designed precursor feeders, either simultaneously or sequentially. The reduction and carburization of the vaporized precursors by gaseous mixtures produces carbide-metal nanocomposite powders. The product can be a very uniform mixture of the constituent powders or a uniform agglomerate, which is important to ensure a high quality of bulk cemented metal carbide product after consolidation and sintering. These nanocomposite powders can be readily characterized using XRD, carbon analyzer and TEM.
Sohn, Hong Yong (Salt Lake City, UT), Fang, Zhigang Zak (Salt Lake City, UT), Ryu, Taegong (Salt Lake City, UT), Han, Gilsoo (Salt Lake City, UT)
University of Utah Research Foundation (Salt Lake City UT)
12/ 306,226
June 20, 2007
GOVERNMENT INTEREST [0002] The Government of the United States of America may have certain rights to this invention pursuant to Department of Energy Cooperative Agreement No. DE-FC36-04GO14041.