This title appears in the Scientific Report :
2006
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevE.74.031605 in citations.
Please use the identifier: http://hdl.handle.net/2128/9246 in citations.
In situ and real-time probing of quasicrystal solidification dynamics by synchrotron imaging
In situ and real-time probing of quasicrystal solidification dynamics by synchrotron imaging
Quasicrystal growth remains an unsolved problem in condensed matter. The dynamics of the process is studied by means of synchrotron live imaging all along the solidification of icosahedral AlPdMn quasicrystals. The lateral motion of ledges driving faceted growth at the solid-melt interface is conclu...
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Personal Name(s): | Nguyen Thi, H. |
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Gastaldi, J. / Schenk, T. / Reinhart, G. / Mangelinck-Noel, N. / Cristiglio, V. / Billia, B. / Grushko, B. / Härtwig, B / Klein, H. / Baruchel, J. | |
Contributing Institute: |
Mikrostrukturforschung; IFF-IMF |
Published in: | Physical Review E Physical review / E, 74 74 (2006 2006) 3 3, S. 031605 031605 |
Imprint: |
College Park, Md.
APS
2006
2006-09-15 2006-09-01 |
Physical Description: |
031605 |
DOI: |
10.1103/PhysRevE.74.031605 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Physical Review E
74 |
Subject (ZB): | |
Link: |
Get full text OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/9246 in citations.
Quasicrystal growth remains an unsolved problem in condensed matter. The dynamics of the process is studied by means of synchrotron live imaging all along the solidification of icosahedral AlPdMn quasicrystals. The lateral motion of ledges driving faceted growth at the solid-melt interface is conclusively shown. When the solidification rate is increased, nucleation and free growth of new faceted grains occur in the melt due to the significant interface recoil induced by slow attachment kinetics. The detailed analysis of the evolution of these grains reveals the crucial role of aluminum rejection, both in the poisoning of their growth and driving fluid flow. |