Strongly Driven Crystallization Processes in a Metallic Glass [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 2009.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: PDF-file: 17 pages; size: 1.1 Mbytes
Additional Creators:: Lawrence Berkeley National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

The crystallization of amorphous NiTi thin films was studied in situ using pulsed laser heating in a dynamic transmission electron microscope. A single pulse can crystallize small areas of the film within 2 {micro}s. The crystallized volume fraction and morphology depend strongly on the laser energy, the laser spatial profile, and the heat transport in the film. As compared to slower furnace and continuous wave laser annealing, pulsed laser heating produces a dramatically different microstructure. Higher than expected crystallization rates were observed under pulsed irradiation that do not correlate with kinetic data obtained from the slow-heating crystallization experiments.

Report Numbers:

E 1.99:llnl-jrnl-410497
llnl-jrnl-410497

Subject(s):

Materials Science

Other Subject(s):

Note:

Published through SciTech Connect.
02/09/2009.
"llnl-jrnl-410497"
Applied Physics Letters, vol. 94, N/A, May 4, 2009, pp. 184101-184103 94 18 ISSN 0003-6951; APPLAB FT
King, W E; Campbell, G H; Browning, N D; Reed, B W; Grummon, D S; LaGrange, T.

Funding Information:

W-7405-ENG-48

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