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Sectorial Structure of Chrysoberyl Crystals Grown by Horizontal Directional Solidification

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Inorganic Materials Aims and scope

Abstract

The sectorial structure of chrysoberyl crystals grown in the [100] direction by horizontal directional solidification is analyzed. A major part of such crystals is constituted by the (120) growth sector. Physical modeling of mass transport during the directional solidification of chrysoberyl suggests the existence of two stable melt flows, one circulating relatively rapidly near the free surface and the other circulating near the bottom of the container. This flow pattern is responsible for the formation of the (130) and (100) growth sectors. The inclusion-rich zone in the bottom part of the crystal is due to the slow melt circulation at the boundary between the two flows.

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REFERENCES

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Authors and Affiliations

  1. Institute of Mineralogy and Petrography, Siberian Division, Russian Academy of Sciences, pr. akademika Koptyuga 3, Novosibirsk, 630090 Russia

    V. V. Gurov & A. G. Kirdyashkin

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  1. V. V. Gurov
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  2. A. G. Kirdyashkin
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Gurov, V.V., Kirdyashkin, A.G. Sectorial Structure of Chrysoberyl Crystals Grown by Horizontal Directional Solidification. Inorganic Materials 37, 44–46 (2001). https://doi.org/10.1023/A:1026733310295

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  • DOI: https://doi.org/10.1023/A:1026733310295

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