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A Complexed Precursor Approach To The Synthesis Of Ternary Transition Metal Nitrides

Published online by Cambridge University Press:  10 February 2011

K. S. Weil  and
P. N. Kumta
K. S. Weil
Affiliation:
Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213
P. N. Kumta
Affiliation:
Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213
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Abstract

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 Ni3Mo3N, FeWN2, and Ti3AlN powders, each of which have been characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 410: Symposium S – Covalent Ceramics III-Science and Technology of Non-Oxides , 1995 , 127
Copyright
Copyright © Materials Research Society 1996

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