A complexed precursor approach to the synthesis of ternary transition metal nitrides
Book
·
OSTI ID:470897
- Carnegie Mellon Univ., Pittsburgh, PA (United States). Dept. of Materials Science and Engineering
A new chemical synthesis approach has been developed in which ternary transition metal nitride powders are synthesized from hydrolyzed alkanoamine complexed precursors. In this technique, two different metal chlorides are dissolved in a common solvent such as acetonitrile, then reacted with ethanolamine to form a highly viscous solution which settles out of the solvent phase. Simultaneous evaporation of the solvent and forced hydrolysis of the remaining liquid results in the formation of a precipitate which can be filtered and dried. The precursor is heat treated in ammonia to form the corresponding ternary nitride. The approach has been successfully used to synthesize Ni{sub 3}Mo{sub 3}N, FeWN{sub 2}, and Ti{sub 3}AlN powders, each of which have been characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM).
- Sponsoring Organization:
- National Science Foundation, Washington, DC (United States); Advanced Research Projects Agency, Washington, DC (United States); Department of Defense, Washington, DC (United States)
- OSTI ID:
- 470897
- Report Number(s):
- CONF-951155--; ISBN 1-55899-313-4
- Country of Publication:
- United States
- Language:
- English
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