Abstract
We have fabricated Zr55Cu30Al10Ni5 metallic glassy matrix composite by a spark plasma sintering process using a mixed powder of gas-atomized Zr55Cu30Al10Ni5 glassy alloy powders blended with 10 vol. % ZrO2 powders. The structure, thermal stability, and mechanical properties of the sintered bulk glassy matrix composite were investigated. The ZrO2 particles were homogeneously dispersed in the Zr55Cu30Al10Ni5 glassy matrix. No crystallization of the glassy matrix occurred during the spark plasma sintering process. The crystallization behavior of the sintered glassy matrix composite was similar to that of the glassy alloy powder. The plastic ductility of the sintered Zr55Cu30Al10Ni5 glassy matrix composite was enhanced by adding the ZrO2 particulates into the metallic glassy alloy. The improvement was originated from the structural inhomogeneity caused by the micro-particles inclusion.
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