Document Detail


Evolution of dendritic patterns during alloy solidification: From the initial instability to the steady state.
MedLine Citation:
PMID:  11038616     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The evolution of the crystal-melt interface was investigated during directional solidification of a dilute binary alloy, starting at the marginal stability time t(i) at which the planar interface first becomes unstable. The time delay between t(i) and the crossover time t(0) at which the interface modulation becomes observable was determined experimentally. The interface morphology was analyzed as the cellular pattern appeared, and it was followed through the coarsening phase to the final steady-state dendritic pattern. The relevance of the initial instability for steady-state pattern selection was verified experimentally, and some aspects of the coarsening dynamics were measured and compared with theoretical predictions of Warren and Langer [Warren, J. A. & Langer, J. S. (1990) Phys. Rev. A 42, 3518-3525; Warren, J. A. & Langer, J. S. (1993) Phys. Rev. E 47, 2702-2712].
Authors:
W Losert; B Q Shi; H Z Cummins
Related Documents :
11536886 - Physical strain-mediated microtubule reorientation in the epidermis of gravitropically ...
8842376 - Studies with wortmannin and cytochalasins suggest a pivotal role of phosphatidylinosito...
4456836 - The influence of postural changes on the glomerular filtration rate in nephroptosis.
9023506 - Osmotic flow transients during acetylcholine stimulation in the perfused rat submandibu...
16143716 - Perturbed reproductive development in salt-treated sorghum bicolor: a consequence of mo...
23511696 - Sports participation in non-compaction cardiomyopathy: a systematic review.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  95     ISSN:  0027-8424     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  1998 Jan 
Date Detail:
Created Date:  2007-03-23     Completed Date:  2008-04-18     Revised Date:  2010-09-14    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  439-42     Citation Subset:  -    
Affiliation:
Department of Physics, City College of the City University of New York, New York, NY 10031, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Evolution of dendritic patterns during alloy solidification: onset of the initial instability.
Next Document:  Tracking the motion of chemisorbed molecules on their adsorption sites.