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Synthesis of the novel Zr3AlC2 MAX phase
Journal article

Synthesis of the novel Zr3AlC2 MAX phase

T. Lapauw, J. Halim, J. Lu, T. Cabioc'h, L. Hultman, M. W. Barsoum, K. Lambrinou and J. Vleugels
Journal of the European Ceramic Society, v 36(3), pp 943-947
01 Feb 2016

Abstract

Materials Science Materials Science, Ceramics Science & Technology Technology
Herein we report, for the first time, on the synthesis and structural characterization of the Zr-based MAX phase, Zr3AlC2, fabricated by reactive hot pressing of ZrH2, Al, and C powders. The crystal structure of Zr3AlC2 was determined by X-ray diffraction and high resolution transmission electron microscopy to be the hexagonal space group P63/mmc. The a and c lattice parameters are 3.33308(6)angstrom and 19.9507(3)angstrom, respectively. The samples include the secondary phases ZrC and Zr-Al intermetallics as confirmed by quantitative electron probe microanalysis. The Vickers hardness, using a force of 30 N, was measured to be 4.4 +/- 0.4 GPa. (C) 2015 Elsevier Ltd. All rights reserved.

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Materials Science, Ceramics
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