Finite size effects in the crystallization of a bulk metallic glass

Manesh Gopinadhan; Zhen Shao; Yanhui Liu; Sundeep Mukherjee; Ryan C. Sekol; Golden Kumar; André D. Taylor; Jan Schroers; Chinedum O. Osuji

doi:10.1063/1.4821032

Finite size effects in the crystallization of a bulk metallic glass

Manesh Gopinadhan, Zhen Shao, Yanhui Liu, Sundeep Mukherjee, Ryan C. Sekol, Golden Kumar, André D. Taylor, Jan Schroers, Chinedum O. Osuji

Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We explore finite size effects in the crystallization of a bulk metallic glass with nm-scale dimensions. Nanorods of Pt_57.5Cu _14.7Ni_5.3P_22.5 are produced by thermoplastic extrusion of supercooled liquid through a nanoporous template. The nanorods exhibit remarkable differences in their crystallization behavior above the glass transition. Crystallization for 100 and 200 nm diameter nanorods occurred at 6 and 24 °C lower, respectively, than the nominal crystallization temperature for bulk material while the glass transition temperatures were unchanged from the bulk value. Size dependent crystallization kinetics is discussed within a framework of classical nucleation theory, as well as possible shear and surface-induced effects.

Original language	English (US)
Article number	111912
Journal	Applied Physics Letters
Volume	103
Issue number	11
DOIs	https://doi.org/10.1063/1.4821032
State	Published - Sep 9 2013

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4821032

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title = "Finite size effects in the crystallization of a bulk metallic glass",

abstract = "We explore finite size effects in the crystallization of a bulk metallic glass with nm-scale dimensions. Nanorods of Pt57.5Cu 14.7Ni5.3P22.5 are produced by thermoplastic extrusion of supercooled liquid through a nanoporous template. The nanorods exhibit remarkable differences in their crystallization behavior above the glass transition. Crystallization for 100 and 200 nm diameter nanorods occurred at 6 and 24 °C lower, respectively, than the nominal crystallization temperature for bulk material while the glass transition temperatures were unchanged from the bulk value. Size dependent crystallization kinetics is discussed within a framework of classical nucleation theory, as well as possible shear and surface-induced effects.",

author = "Manesh Gopinadhan and Zhen Shao and Yanhui Liu and Sundeep Mukherjee and Sekol, {Ryan C.} and Golden Kumar and Taylor, {Andr{\'e} D.} and Jan Schroers and Osuji, {Chinedum O.}",

note = "Funding Information: This work was supported by NSF MRSEC DMR-1119826. Facilities use was supported by YINQE. A.D.T and R.C.S. acknowledge financial support by AFOSR (FA9550-11-1-0219). C.O. and M.G. acknowledge financial support by NSF through DMR-0847534. ",

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doi = "10.1063/1.4821032",

language = "English (US)",

volume = "103",

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T1 - Finite size effects in the crystallization of a bulk metallic glass

AU - Gopinadhan, Manesh

AU - Shao, Zhen

AU - Liu, Yanhui

AU - Mukherjee, Sundeep

AU - Sekol, Ryan C.

AU - Kumar, Golden

AU - Taylor, André D.

AU - Schroers, Jan

AU - Osuji, Chinedum O.

N1 - Funding Information: This work was supported by NSF MRSEC DMR-1119826. Facilities use was supported by YINQE. A.D.T and R.C.S. acknowledge financial support by AFOSR (FA9550-11-1-0219). C.O. and M.G. acknowledge financial support by NSF through DMR-0847534.

PY - 2013/9/9

Y1 - 2013/9/9

N2 - We explore finite size effects in the crystallization of a bulk metallic glass with nm-scale dimensions. Nanorods of Pt57.5Cu 14.7Ni5.3P22.5 are produced by thermoplastic extrusion of supercooled liquid through a nanoporous template. The nanorods exhibit remarkable differences in their crystallization behavior above the glass transition. Crystallization for 100 and 200 nm diameter nanorods occurred at 6 and 24 °C lower, respectively, than the nominal crystallization temperature for bulk material while the glass transition temperatures were unchanged from the bulk value. Size dependent crystallization kinetics is discussed within a framework of classical nucleation theory, as well as possible shear and surface-induced effects.

AB - We explore finite size effects in the crystallization of a bulk metallic glass with nm-scale dimensions. Nanorods of Pt57.5Cu 14.7Ni5.3P22.5 are produced by thermoplastic extrusion of supercooled liquid through a nanoporous template. The nanorods exhibit remarkable differences in their crystallization behavior above the glass transition. Crystallization for 100 and 200 nm diameter nanorods occurred at 6 and 24 °C lower, respectively, than the nominal crystallization temperature for bulk material while the glass transition temperatures were unchanged from the bulk value. Size dependent crystallization kinetics is discussed within a framework of classical nucleation theory, as well as possible shear and surface-induced effects.

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JF - Applied Physics Letters

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M1 - 111912

ER -

Finite size effects in the crystallization of a bulk metallic glass

Abstract

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