Compacting of Material by Combining Spark Plasma Sintering and Self-Propagating High-Temperature Synthesis in Ti–Al–C System

Initiation of self-expanding high-temperature synthesis (SHS) in the Al–Ti–C system in the process of spark plasma sintering (SPS) of specimens allows obtaining a material with high density, which contains MAX-phases. A simple rheological theory has been developed, which can describe SHS and SPS pro...

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Bibliographic Details
Published in:Materials science (New York, N.Y.) N.Y.), 2023-12, Vol.59 (4), p.459-466
Main Authors: Kuskova, N. I., Syzonenko, O. M., Prystash, M. S., Torpakov, A. S.
Format: Article
Language:English
Subjects:
Aluminum
Characterization and Evaluation of Materials
Chemistry and Materials Science
Materials Science
Mixtures
Pressure dependence
Rheological properties
Self propagating high temperature synthesis
Self-propagating synthesis
Sintering (powder metallurgy)
Solid Mechanics
Spark plasma sintering
Specific gravity
Structural Materials
Titanium
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Summary:Initiation of self-expanding high-temperature synthesis (SHS) in the Al–Ti–C system in the process of spark plasma sintering (SPS) of specimens allows obtaining a material with high density, which contains MAX-phases. A simple rheological theory has been developed, which can describe SHS and SPS processes under certain conditions. Within the framework of this model, the processes of pressing and extrusion at uniaxial pressure are considered. The dependence of the relative density of the powder mixture on time is scaled by the factor of the ratio of pressure to the viscosity of the invariant base of the material. Analytical time dependences of the plunger speed and sample height, as well as the time required to achieve the specified value of the relative density of the Al–Ti–C material, which allows us to predict and analyze the compression of powder mixtures in the SPS process were obtained.
ISSN:1068-820X
1573-885X
DOI:10.1007/s11003-024-00798-3