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Growth of self organized eutectic fibers from LiF-rare earth fluoride systems

AuthorsKlimm, D.; Acosta, M. F. ; Santos, Ivanildo A. dos; Ranieri, Izilda M.; Ganschow, S.; Merino, R. I.
KeywordsScanning electron microscopy (SEM)
Directional solidification
Issue Date2013
PublisherCambridge University Press
CitationMRS Proceedings 1508: bb04 (2013)
AbstractEutectic fibers consisting of an ordered arrangement of LiF fibrils inside a LiREF4 matrix (RE = Y, Gd) can be grown with the micro-pulling-down method at sufficiently large pulling rate exceeding 120 mm/h. The distance between individual fibrils could be scaled down to 1 µm at 300 mm/h pulling. LiF-LiYF4 has stronger tendency to form facetted eutectic colonies than LiF-LiGdF4, explained by the larger entropy of melting of the former.
DescriptionTrabajo presentado al 2012 MRS Fall Meeting & Exhibit, celebrado del 25 al 30 de noviembre en Boston (US).-- arXiv:1301.6088
Publisher version (URL)http://dx.doi.org/10.1557/opl.2013.487
Identifiersdoi: 10.1557/opl.2013.487
e-issn: 1946-4274
Appears in Collections:(ICMA) Artículos
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