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Characterization of ruby single crystal grown by $PbO-B_2O_3$ flux  

Cho, Min-Hee (Department of Materials & Chemical Engineering, Hanyang University)
Seo, Jin-Gyo (Division of Materials Science & Engineering, Hanyang University)
Ahn, Yong-Kil (Department of Materials & Chemical Engineering, Hanyang University)
Park, Jong-Wan (Division of Materials Science & Engineering, Hanyang University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.19, no.4, 2009 , pp. 165-171 More about this Journal
Abstract
In this study, ruby single crystals were successfully grown by flux method using an alumina crucible. The alumina crucible can be a substitute for the platinum crucible of high price. The ruby single crystals were grown in the temperature range of $915{\sim}1350^{\circ}C$ for 240 h, using $PbO-B_2O_3$ mixture. The grown ruby crystals with 9.02 ${\times}$ 6.36 mm in size exhibited red color and were transparent. The optical and structural properties were examined by UV-VIS spectrometry, FTIR and XRD. The optical properties of theses crystals were similar to those of the natural ruby and synthetic ruby grown by other methods.
Keywords
Ruby single crystals; Flux method; Alumina crucible;
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