ZrB2–MoSi2 composites toughened by elongated ZrB2 grains via reactive hot pressing

ZrB2–20 vol.% MoSi2 composites with elongated ZrB2 grains were prepared by reactive hot pressing using Zr, Si, B and Mo as raw materials. The ductile behavior of MoSi2 at high temperature helped the rod-like ZrB2 grains align under the applied pressure during sintering, resulting in a partly textured composite. The anisotropic growth of ZrB2 grains improved the toughness of the composite remarkably.