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Time-Resolved X-Ray Diffraction Investigation of Superheating-Melting of Crystals under Ultrafast Heating

Luo, Sheng-Nian and Swift, Damian C. and Tierney, Thomas and Xia, Kaiwen and Tschauner, Oliver and Asimow, Paul D. (2004) Time-Resolved X-Ray Diffraction Investigation of Superheating-Melting of Crystals under Ultrafast Heating. In: Shock Compression of Condensed Matter - 2003: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. American Institute of Physics Conference Proceedings. No.706. American Institute of Physics , Melville, NY, pp. 95-98. ISBN 0735401810.

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The maximum superheating of a solid prior to melting depends on the effective dimensionless nucleation energy barrier, heterogeneities such as free surfaces and defects, and heating rates. Superheating is rarely achieved with conventional slow heating due to the dominant effect of heterogeneous nucleation. In present work, we investigate the superheating-melting behavior of crystals utilizing ultrafast heating techniques such as exploding wire and laser irradiation, and diagnostics such as time-resolved X-ray diffraction combined with simultaneous measurements on voltage and current (for exploding wire) and particle velocity (for laser irradiation). Experimental designs and preliminary results are presented.

Item Type:Book Section
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Asimow, Paul D.0000-0001-6025-8925
Additional Information:© 2004 American Institute of Physics. S.-N. Luo is sponsored by a Director's Postdoctoral Fellowship at Los Alamos National Laboratory (P-24 and EES-11). We appreciate the kind permission of QinetiQ for using their exploding wire data.
Funding AgencyGrant Number
Los Alamos National Laboratory Director's Postdoctoral Fellowship UNSPECIFIED
Subject Keywords:melting; heat transfer; heating; X-ray diffraction; crystal structure; nucleation; particle velocity analysis; exploding wires; shock wave effects
Series Name:American Institute of Physics Conference Proceedings
Issue or Number:706
Classification Code:PACS: 61.50.Ks; 64.70.Dv; 61.10.Nz; 60.Qb; 52.80.Qj; 62.50.+p
Record Number:CaltechAUTHORS:LUOaipcp04b
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2235
Deposited By: Archive Administrator
Deposited On:17 Mar 2006
Last Modified:02 Oct 2019 22:51

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