Nearly full density Ni52.5 Nb10 Zr15 Ti15 Pt7.5 bulk metallic glass obtained by spark plasma sintering of gas atomized powders

Guoqiang Xie, Dmitri Valentinovich Louzguine, Hisamichi Kimura, Akihisa Inoue

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78 Citations (Scopus)

Abstract

Ni-based bulk metallic glasses (BMGs) with a large size were fabricated by spark plasma sintering (SPS) of a gas-atomized Ni52.5 Nb10 Zr15 Ti15 Pt7.5 glassy alloy powder. The structure and thermal stability of the sintered specimens as well as the interface characteristics between powder particles were investigated. The sintered glassy specimens with nearly 100% relative density were obtained by the SPS process at a sintering temperature of 773 K with a loading pressure of 600 MPa. It was achieved using relatively low sintering temperature, short holding time, and rapid cooling during the SPS process. The results suggest that the BMGs fabricated by the SPS process opens possibilities of application as structural materials offering excellent properties and satisfying large-size requirements.

Original languageEnglish
Article number241902
JournalApplied Physics Letters
Volume90
Issue number24
DOIs
Publication statusPublished - 2007 Jun 22

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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