Synthesis, microstructure and properties of MoAlB ceramics prepared by in situ reactive spark plasma sintering

The renewed research interest on MoAlB ceramic is motivated by its high temperature strength and high temperature oxidation resistance. Bulks were obtained by a reactive spark plasma sintering starting from elemental powders of Mo, Al, and B. Chemical reactions were characterized at intermediate temperatures to define reaction mechanism. The results showed that MoAlB resulted from the reaction of Al8Mo3, MoB, and B or Al8Mo3, Mo, and B at 1000...