Abstract
We have performed nanosecond-resolution measurements of the lateral electrical resistivity of thin metal films on insulating substrates. Comparison of transient resistivity measurements with optical reflectivity measurements and heat-flow calculations permits the determination of the position and velocity of a planar crystal/melt interface, and an estimate of undercooling during pulsed laser melting of metals. We report detailed results for rapid solidification of Ni, including the observation of hypercooling of .liquid Ni.
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Atwater, H.A., West, J.A., Smith, P.M. et al. Time-Resolved Measurements of Solidification and Undercooling in Metals and Alloys. MRS Online Proceedings Library 157, 369–375 (1989). https://doi.org/10.1557/PROC-157-369
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DOI: https://doi.org/10.1557/PROC-157-369