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Growth of LaBGeO 5 crystal fibers by the micro‐pulling down technique
Author(s) -
Assi F.,
Ferriol M.,
Cochez M.,
Aillerie M.
Publication year - 2016
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201500161
Subject(s) - raman spectroscopy , scanning electron microscope , materials science , analytical chemistry (journal) , fiber , phase diagram , crystal (programming language) , volatility (finance) , crystal growth , viscosity , chemistry , phase (matter) , crystallography , composite material , optics , chromatography , organic chemistry , physics , computer science , financial economics , economics , programming language
The LaBGeO 5 compound (LBGO) was prepared by solid state reaction at 1050°C and characterized by XRD and DTA analysis. The direct growth of LBGO fibers from the melt using micro‐pulling down technique was unsuccessful because of its high viscosity. The study of the LBGO‐LiF phase diagram showed that LiF could be considered as a convenient flux to reduce viscosity of the melt during the growth process. Several crystal fibers were then grown and characterized by Raman spectroscopy. To decrease the high volatility of LiF, B 2 O 3 was added to the melt. A white cloudy fiber was obtained from LiF‐B 2 O 3 flux and checked by Raman spectroscopy and scanning electron microscopy.