Consolidation Behavior of Cu-Zr-Al Metallic Glass Powder by Spark Plasma Sintering

摘要

We investigated consolidation behavior of gas-atomized Cu_(50)Zr_(45)A1_5 metallic glassy alloy powders by a spark plasma sintering (SPS) process. Density of the sintered samples increased with an increase in sintering temperature. The nearly full density samples without crystallization could be attained by the SPS process at sintering temperature of 693 K under pressure of 600 MPa. The produced samples exhibited high-strength and met large-size requirement. The SPS process makes it possible to fabricate the large-size bulk metallic glasses without limitation of dimensions and alloy system.