Thermophysical properties and eutectic growth of electrostatically levitated and substantially undercooled liquid Zr91.2Si8.8 alloy

L. Hu; L. H. Li; S. J. Yang; B. Wei

doi:10.1016/j.cplett.2014.12.058

Thermophysical properties and eutectic growth of electrostatically levitated and substantially undercooled liquid Zr_91.2Si_8.8 alloy

L. Hu, L. H. Li, S. J. Yang, B. Wei

School of Physical Science and Technology

Northwestern Polytechnical University Xian

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

25 Scopus citations

Abstract

We present the thermophysical properties and eutectic growth of undercooled liquid Zr_91.2Si_8.8 alloy at electrostatic levitation state. The obtained maximum undercooling is 371 K, which reaches up to 0.2T_E. The density of liquid alloy decreases linearly with increasing temperature. The ratio of specific heat to emissivity is measured and the specific heat is derived accordingly. The solidification microstructure is composed of αZr and Zr₃Si phases and displays a transition from lamellar eutectic to anomalous eutectic with the enhancement of undercooling. The growth velocity of lamellar eutectic is measured to be only 1 mm/s, whereas it increased to 90 mm/s for anomalous eutectic.

Original language	English
Pages (from-to)	91-95
Number of pages	5
Journal	Chemical Physics Letters
Volume	621
DOIs	https://doi.org/10.1016/j.cplett.2014.12.058
State	Published - 4 Feb 2015

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title = "Thermophysical properties and eutectic growth of electrostatically levitated and substantially undercooled liquid Zr91.2Si8.8 alloy",

abstract = "We present the thermophysical properties and eutectic growth of undercooled liquid Zr91.2Si8.8 alloy at electrostatic levitation state. The obtained maximum undercooling is 371 K, which reaches up to 0.2TE. The density of liquid alloy decreases linearly with increasing temperature. The ratio of specific heat to emissivity is measured and the specific heat is derived accordingly. The solidification microstructure is composed of αZr and Zr3Si phases and displays a transition from lamellar eutectic to anomalous eutectic with the enhancement of undercooling. The growth velocity of lamellar eutectic is measured to be only 1 mm/s, whereas it increased to 90 mm/s for anomalous eutectic.",

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T1 - Thermophysical properties and eutectic growth of electrostatically levitated and substantially undercooled liquid Zr91.2Si8.8 alloy

AU - Hu, L.

AU - Li, L. H.

AU - Yang, S. J.

AU - Wei, B.

PY - 2015/2/4

Y1 - 2015/2/4

N2 - We present the thermophysical properties and eutectic growth of undercooled liquid Zr91.2Si8.8 alloy at electrostatic levitation state. The obtained maximum undercooling is 371 K, which reaches up to 0.2TE. The density of liquid alloy decreases linearly with increasing temperature. The ratio of specific heat to emissivity is measured and the specific heat is derived accordingly. The solidification microstructure is composed of αZr and Zr3Si phases and displays a transition from lamellar eutectic to anomalous eutectic with the enhancement of undercooling. The growth velocity of lamellar eutectic is measured to be only 1 mm/s, whereas it increased to 90 mm/s for anomalous eutectic.

AB - We present the thermophysical properties and eutectic growth of undercooled liquid Zr91.2Si8.8 alloy at electrostatic levitation state. The obtained maximum undercooling is 371 K, which reaches up to 0.2TE. The density of liquid alloy decreases linearly with increasing temperature. The ratio of specific heat to emissivity is measured and the specific heat is derived accordingly. The solidification microstructure is composed of αZr and Zr3Si phases and displays a transition from lamellar eutectic to anomalous eutectic with the enhancement of undercooling. The growth velocity of lamellar eutectic is measured to be only 1 mm/s, whereas it increased to 90 mm/s for anomalous eutectic.

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DO - 10.1016/j.cplett.2014.12.058

M3 - 文章

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SN - 0009-2614

VL - 621

SP - 91

EP - 95

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

Thermophysical properties and eutectic growth of electrostatically levitated and substantially undercooled liquid Zr_91.2Si_8.8 alloy

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