Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/19364
Share/Export:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Title

Porous crystal structures obtained from directionally solidified eutectic precursors

AuthorsLarrea, A. CSIC ORCID ; Orera, V. M. CSIC ORCID
KeywordsA1. Eutectics
A1. Porous crystals
A2. Bridgman technique
B1. BaF2
B1. CaF2
B1. NaMgF3
Issue Date15-Mar-2007
PublisherElsevier
CitationJournal of Crystal Growth 300(5): 387-393 (2007)
AbstractInterconnecting cage-like porous structures of several halide compounds were prepared by the selective leaching of one eutectic phase method. The binary eutectic precursors were prepared by directional solidification using the Bridgman crystal growth technique. Porous NaMgF3 (40% pore volume), CaF2 (57% pore volume) and BaF2 (43% pore volume) crystals were obtained after water leaching the NaF component of the directionally solidified NaF/NaMgF3, NaF/CaF2 and NaF/BaF2 eutectics with the appropriate entangled microstructure. The growth conditions for eutectic-coupled growth and the morphology of the eutectics have been determined. In the coupled growth regime, the size of the eutectic phases “λ” is fairly uniform and varies with the eutectic growth rate “v” as λ2v=constant, which allows us to control the pore size within the 0.5–10 μm range. The simplicity and versatility of the eutectic growth also allows us to fabricate highly aligned porous structures at relatively high production rates.
Description7 figures, 2 figures.
Publisher version (URL)http://dx.doi.org/10.1016/j.jcrysgro.2006.12.060
URIhttp://hdl.handle.net/10261/19364
DOI10.1016/j.jcrysgro.2006.12.060
Appears in Collections:(ICMA) Artículos

Files in This Item:
File Description SizeFormat
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work

SCOPUSTM   
Citations

21
checked on May 16, 2022

WEB OF SCIENCETM
Citations

18
checked on May 15, 2022

Page view(s)

369
checked on May 21, 2022

Download(s)

99
checked on May 21, 2022

Google ScholarTM

Check

Altmetric

Dimensions


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.