Attempts to synthesise quaternary MAX phases (Zr,M)2AlC and Zr2(Al,A)C as a way to approach Zr2AlC

Denis Horlait, Salvatore Grasso, Alexander Chroneos, William E. Lee
2016 Materials Research Letters  
Despite having never been synthesized, the MAX phase Zr 2 AlC attracts a lot of interest owing to its foreseen properties. A possible way to circumvent this obstacle is to stabilize Zr 2 AlC by partially substituting one of its constituting elements. Here we report on attempts to synthesise quaternary MAX phases (Zr,M) 2 AlC and Zr 2 (Al,A)C where M = Cr, Ti or Mo and A = S, As, Sn, Sb and Pb. We were notably able to produce Zr 2 (Al 0.2 Sn 0.8 )C, Zr 2 (Al 0.35 Pb 0.65 )C, and Zr 2 (Al 0.3 Sb
more » ... nd Zr 2 (Al 0.3 Sb 0.7 )C, with the latter representing the first antimony-based MAX phase ever reported. Impact Statement: Numerous syntheses of Zr 2 AlC derived compositions were attempted. Zr 2 (Al 0.2 Sn 0.8 )C, Zr 2 (Al 0.35 Pb 0.65 )C and Zr 2 (Al 0.3 Sb 0.7 )C were notably produced and reported for the first time.
doi:10.1080/21663831.2016.1143053 fatcat:w63tie7hv5d4rbthlaruc72dve