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Functionally Graded TiC-Based Cermets via Combustion Synthesis and Quasi-Isostatic Pressing

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Abstract:

Experimental results on the preparation of functionally graded TiC-based cermets obtained by combustion synthesis (also known as Self-Propagating High-Temperature Synthesis, SHS) followed by quasi-isostatic (QIP) pressing in a granulate medium are presented. Pellets of TiC-Fe graded cermets are produced by stacking layers of Ti and C powder mixtures in which the content of a NiFe alloy (50 wt% Ni and 50 wt% Fe) is varied from 5 up to 25 vol %. X-ray diffraction showed that the NiFe alloy did not react with the TiC, thus preserving its special properties. Scanning electron microscopy results show a graded material with pores increasing in size towards the side with the highest ceramic fraction.

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Periodical:

Materials Science Forum (Volumes 492-493)

Pages:

63-68

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.492-493.63

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Online since:

August 2005

Authors:

M. Martinez Pacheco, Marianne Stuivinga, Eric Carton, Laurens Katgerman

Keywords:

Combustion Synthesis (CS), Functionally Graded Material (FGM), Graded Cermets, Granulate Medium, Pressure Transmitting Medium PTM, Quasi-Isostatic Pressing, SHS

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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