Fabricating Zr-Based Bulk Metallic Glass Microcomponent by Suction Casting Using Silicon Micromold | Zendy

Zhu Zhijing | Zendy; Yi Chuanyun | Zendy; Shi Tielin | Zendy; Gao Yang | Zendy; Wen Chi | Zendy; Liao Guanglan | Zendy

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Fabricating Zr-Based Bulk Metallic Glass Microcomponent by Suction Casting Using Silicon Micromold

Author(s) -

Zhu Zhijing,

Yi Chuanyun,

Shi Tielin,

Gao Yang,

Wen Chi,

Liao Guanglan

Publication year - 2014

Publication title -

advances in mechanical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.318

H-Index - 40

ISSN - 1687-8132

DOI - 10.1155/2014/362484

Subject(s) - materials science , nanoindentation , silicon , microstructure , amorphous metal , casting , scanning electron microscope , composite material , amorphous solid , metallurgy , alloy , crystallography , chemistry

A suction casting process for fabricating Zr 55 Cu 30 Al 10 Ni 5 bulk metallic glass microcomponent using silicon micromold has been studied. A complicated BMG microgear with 50 μm in module has been cast successfully. Observed by scanning electron microscopy and laser scanning confocal microscopy, we find that the cast microgear duplicates the silicon micromold including the microstructure on the surface. The amorphous state of the microgear is confirmed by transmission election microscopy. The nanoindentation hardness and elasticity modulus of the microgear reach 6.5 GPa and 94.5 GPa. The simulation and experimental results prove that the suction casting process with the silicon micromold is a promising one-step method to fabricate bulk metallic glass microcomponents with high performance for applications in microelectromechanical system.

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