Influence of Starting Reagents on the Formation of Ti3SiC2 Porous Skeleton by SHS in Air

The phase formation and macro/microstructure of a porous skeleton based on Ti 3 SiC 2 MAX phase prepared by self-propagating high-temperature synthesis of green mixtures consisting of Ti powders differing in particle size, different carbon powder forms, and Si powder in a sand backfill in air. Compa...

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Bibliographic Details
Published in:International journal of self-propagating high-temperature synthesis 2024-03, Vol.33 (1), p.26-32
Main Authors: Davydov, D. M., Umerov, E. R., Amosov, A. P., Latukhin, E. I.
Format: Article
Language:English
Subjects:
Carbon
Carbon black
Chemistry and Materials Science
Compressive strength
Graphite
Macrostructure
Materials Science
Particle size
Phase composition
Reagents
Self propagating high temperature synthesis
Titanium silicon carbide
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Summary:The phase formation and macro/microstructure of a porous skeleton based on Ti 3 SiC 2 MAX phase prepared by self-propagating high-temperature synthesis of green mixtures consisting of Ti powders differing in particle size, different carbon powder forms, and Si powder in a sand backfill in air. Comparative data on porosity, compressive strength, and quantitative phase composition of synthesized samples were presented. It was established that the fractional composition (particle size) of Ti and C powders, as well as the form of C (graphite, carbon black) influence markedly the macrostructure of porous SHS skeletons. The porous skeleton obtained using coarse Ti and medium colloidal graphite powders was found to have high content of Ti 3 SiC 2 MAX phase (66%) and to possess high density and compressive strength (2.41 g/cm 3 and 104 MPa, respectively).
ISSN:1061-3862
1934-788X
DOI:10.3103/S1061386224010023