Summary: Acta mater. 48 (2000) 4797­4811
www.elsevier.com/locate/actamat
COMPLETE EXPERIMENTAL TEST OF KINETIC MODELS FOR
RAPID ALLOY SOLIDIFICATION
J. A. KITTL*1
, P. G. SANDERS1
, M. J. AZIZ1
§, D. P. BRUNCO¶2
and M. O.
THOMPSON2
1
Division of Engineering and Applied Sciences, Harvard University, Pierce Hall, 29 Oxford Street,
Cambridge, MA, USA and 2
Department of Materials Science and Engineering, Cornell University, Ithaca,
NY, USA
( Received 19 April 2000; received in revised form 24 July 2000; accepted 3 August 2000 )
Abstract--The interface response functions for rapid solidification of a non-dilute binary alloy were measured
in the regime of partial solute trapping, where substantial discrepancies exist among predictions for the
interfacial undercooling in various models. We used pulsed laser melting of Si-As on insulating substrates
to enforce planar solidification spanning the velocity range 0.2­2 m/s. Nanosecond-resolution electrical

Source: Aziz, Michael J.- School of Engineering and Applied Sciences, Harvard University

Collections: Physics; Materials Science