Investigation of the Composition and Properties of a Cr2AlC MAX Phase-Based Material Prepared by Metallothermic SHS
- Authors: Gorshkov V.A.1, Miloserdov P.A.1, Karpov A.V.1, Shchukin A.S.1, Sytschev A.E.1
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Affiliations:
- Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
- Issue: Vol 120, No 5 (2019)
- Pages: 471-475
- Section: Structure, Phase Transformations, and Diffusion
- URL: https://journals.rcsi.science/0031-918X/article/view/168495
- DOI: https://doi.org/10.1134/S0031918X19050041
- ID: 168495
Cite item
Abstract
Cast composite material based on Cr2AlC MAX phase has been prepared by metallothermic self-propagating high-temperature synthesis (SHS) from a mixture of powders of chromium oxide, aluminum, and carbon. The experiments have been performed using an SHS reactor with a volume V of 3 L under an excess inert gas (Ar) pressure (P = 5 MPa). The prepared material has been studied by X-ray diffraction analysis, scanning electron microscopy, and local microstructural analysis. The quantitative analysis has been performed by the Rietveld method. The electrical resistivity was measured in the 100–1300 K temperature range. The resulting material is an electrical conductor with metallic conductivity in the 100–1300 K temperature range, and has the electrical resistivity of the same order as the samples containing 100% Cr2AlC.
About the authors
V. A. Gorshkov
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
Author for correspondence.
Email: gorsh@ism.ac.ru
Russian Federation, Chernogolovka, 142432
P. A. Miloserdov
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
Email: gorsh@ism.ac.ru
Russian Federation, Chernogolovka, 142432
A. V. Karpov
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
Email: gorsh@ism.ac.ru
Russian Federation, Chernogolovka, 142432
A. S. Shchukin
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
Email: gorsh@ism.ac.ru
Russian Federation, Chernogolovka, 142432
A. E. Sytschev
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
Email: gorsh@ism.ac.ru
Russian Federation, Chernogolovka, 142432