Synthesis of MoSi2-based alloys by mechanical alloying

摘要

We prepared single-phase MoSi(sub 2) powders by mechanical alloying starting from elemental powders. We used high-energy ball-milling to prepare two-phase MoSi(sub 2)-yttria-partially stabilized zirconia and MoSi(sub 2)-SiC alloy powder mixtures. We consolidated these powders by hot-pressing. We present here the characterization of these alloys by optical and electron microscopy. Further, we have measured the room-temperature and high-temperature mechanical properties of these alloys and compare the properties of single-phase MoSi(sub 2) to the two-phase alloys.