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http://dx.doi.org/10.4150/KPMI.2006.13.5.351

Spark Plasma Sintering of the Ductile Cu-Gas-atomized Ni Bulk Metallic Glass Composite Powders  

Kim, Jin-Chun (School of Materials Science & Engineering, University of Ulsan)
Kim, Yong-Jin (Powder Materials Research Center, Korea Institute of Machinery & Materials)
Kim, Byoung-Kee (Powder Materials Research Center, Korea Institute of Machinery & Materials)
Kim, Ji-Soon (School of Materials Science & Engineering, University of Ulsan)
Publication Information
Journal of Powder Materials / v.13, no.5, 2006 , pp. 351-359 More about this Journal
Abstract
Ni based($Ni_{57}Zr_{20}Ti_{18}Si_2Sn_3$) bulk metallic glass(BMG) powders were produced by a gas atomization process, and ductile Cu powders were mixed using a spray drying process. The Ni-based amorphous powder and Cu mixed Ni composite powders were compacted by a spark plasma sintering (SPS) processes into cylindrical shape. The relative density varied with the used SPS mold materials such as graphite, hardened steel and WC-Co hard metal. The relative density increased from 87% to 98% when the sintering temperature increased up to $460^{\circ}C$ in the WC-Co hard metal mold.
Keywords
Bulk metallic glass; Spark plasma sintering; Gas atomization; Composite powder;
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