Thermophysical properties of a highly superheated and undercooled Ni–Si alloy melt

Wang, H.P.; Cao, C.D.; Wei, B.
May 2004
Applied Physics Letters;5/17/2004, Vol. 84 Issue 20, p4062
Academic Journal
The surface tension of superheated and undercooled liquid Ni-5 wt % Si alloy was measured by an electromagnetic oscillating drop method over a wide temperature range from 1417 to 1994 K. The maximum undercooling of 206 K (0.13 TL) was achieved. The surface tension of liquid Ni-5 wt % Si alloy is 1.697 Nm-1 at the liquidus temperature 1623 K, and its temperature coefficient is -3.97 × 10-4 Nm-1K-1. On the basis of the experimental data of surface tension, the other thermophysical properties such as the viscosity, the solute diffusion coefficient, and the density of liquid Ni-5 wt % Si alloy were also derived.


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