Journal
SCRIPTA MATERIALIA
Volume 101, Issue -, Pages 5-7Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2014.12.024
Keywords
Ordered MAX phases; Ternary carbides; Molybdenum carbides; High resolution scanning transmission electron microscopy
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Funding
- Army Research Office (United States) [W911NF-11-1-0525, W911NF-14-1-0568]
- SSF synergy grant FUNCASE Functional Carbides and Advanced Surface Engineering Sweden
- Knut and Alice Wallenberg Foundation
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Herein we report on the synthesis of a new layered ternary carbide, Mo2TiAlC2, that was synthesized by heating an elemental mixture at 1600 degrees C for 4 h under an Ar flow. Its hexagonal, a and c lattice parameters were calculated via Rietveld analysis of powder X-ray diffraction patterns to be, respectively, 2.997 angstrom and 18.661 angstrom. High-resolution scanning transmission electron microscopy showed that this phase is ordered, with Ti layers sandwiched between two Mo layers in a M(3)AX(2) type ternary carbide structure. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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