Premium
Growth of olivine single crystals by the micro‐pulling‐down method
Author(s) -
Ganschow S.,
Klimm D.
Publication year - 2005
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.200410351
Subject(s) - fayalite , magnetite , olivine , homogeneous , phase (matter) , oxygen pressure , mineralogy , materials science , analytical chemistry (journal) , core (optical fiber) , chemistry , oxygen , crystallography , chemical engineering , thermodynamics , metallurgy , composite material , chromatography , physics , organic chemistry , engineering
Olivine, (Mg 1‐ x Fe x ) 2 SiO 4 , crystals have been grown by the micro‐pulling‐down method. The crystals consisted of a homogeneous core and a surrounding peripheral rim with increased fayalite concentration and numerous second phase inclusions, mainly magnetite. The formation of magnetite could be successfully retarded by using an adapted atmosphere consisting of 5 vol% CO + 10 vol% CO 2 + 85 vol% Ar. This mixture yields an oxygen pressure well inside the predominance field of FeO over a wide temperature range. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)