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Physics of Metals and Metallography

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01.05.2019 | STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION

Investigation of the Composition and Properties of a Cr₂AlC MAX Phase-Based Material Prepared by Metallothermic SHS

verfasst von: V. A. Gorshkov, P. A. Miloserdov, A. V. Karpov, A. S. Shchukin, A. E. Sytschev

Erschienen in: Physics of Metals and Metallography | Ausgabe 5/2019

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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.

Vorheriger Artikel Radiation-Induced Phase Formation in Steels of VVER Reactor Pressure Vessels Containing ~0.3–1.3 wt % Nickel

Nächster Artikel Influence of Quenching Parameters on the Stability of the β Solid Solution in a High-Strength Titanium Alloy

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Titel: Investigation of the Composition and Properties of a Cr2AlC MAX Phase-Based Material Prepared by Metallothermic SHS
verfasst von: V. A. Gorshkov
P. A. Miloserdov
A. V. Karpov
A. S. Shchukin
A. E. Sytschev
Publikationsdatum: 01.05.2019
Verlag: Pleiades Publishing
Erschienen in: Physics of Metals and Metallography / Ausgabe 5/2019
Print ISSN: 0031-918X
Elektronische ISSN: 1555-6190
DOI: https://doi.org/10.1134/S0031918X19050041

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