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Morphology of α′H-Ca2SiO4 Solid Solution Crystals

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Abstract:

Single crystals of α′L-(Sr0.3Ca1.7)SiO4 with well-developed smooth faces were grown by heating at 1473 K in a SrCl2 flux. A euhedral prismatic crystal ∼200 m ×∼300 m ×∼1000 m 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.

Document Type: Research Article

DOI: https://doi.org/10.1111/j.1551-2916.2009.03430.x

Affiliations: 1: Research and Development Center, Taiheiyo Cement Corporation, Chiba 285-8655, Japan 2: Department of Environmental and Materials Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan

Publication date: 2010-02-01

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