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Morphology of α′ H ‐Ca 2 SiO 4 Solid Solution Crystals
Author(s) -
Fukuda Koichiro,
Kurokawa Daisuke
Publication year - 2010
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03430.x
Subject(s) - gehlenite , belite , materials science , scanning electron microscope , crystal (programming language) , crystallography , phase (matter) , crystal growth , mineralogy , morphology (biology) , analytical chemistry (journal) , clinker (cement) , chemistry , geology , composite material , portland cement , chromatography , paleontology , organic chemistry , programming language , cement , computer science
Single crystals of α′ L ‐(Sr 0.3 Ca 1.7 )SiO 4 with well‐developed smooth faces were grown by heating at 1473 K in a SrCl 2 flux. A euhedral prismatic crystal ∼200 μm ×∼300 μm ×∼1000 μm in size was selected and examined by the combined use of the precession method and scanning electron microscope. Because the crystal developed within the stable temperature region of the α′ H ‐phase, the faces were successfully identified as {111}, {011}, and {021} on the basis of the former α′ H ‐phase lattice. The faces {011} and {021} constitute a zone with the zone axis [100], which was parallel to the elongation direction of the crystal. A similar morphology was confirmed for the belite crystals in a belite–gehlenite clinker, which were crystallized out of a melt within the stable temperature region of the α′ H ‐phase.