Synthesis of the novel Zr3AlC2 MAX phase

T. Lapauw, J. Halim, J. Lu, T. Cabioc'h, L. Hultman, M. W. Barsoum, K. Lambrinou, J. Vleugels

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Abstract

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)Å and 19.9507(3)Å, 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 30N, was measured to be 4.4±0.4GPa.

Original languageEnglish
Pages (from-to)943-947
Number of pages5
JournalJournal of the European Ceramic Society
Volume36
Issue number3
Early online date24 Oct 2015
DOIs
Publication statusPublished - Feb 2016
Externally publishedYes

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    Lapauw, T., Halim, J., Lu, J., Cabioc'h, T., Hultman, L., Barsoum, M. W., Lambrinou, K., & Vleugels, J. (2016). Synthesis of the novel Zr3AlC2 MAX phase. Journal of the European Ceramic Society, 36(3), 943-947. https://doi.org/10.1016/j.jeurceramsoc.2015.10.011