| 摘要 |
PURPOSE:To improve the quality and the yield of single crystal in the titled synthesis using a molten salt, by vitrifying one or more raw materials, and adding the vitrified material to a molten salt or a mixture of molten salt and powdery raw material. CONSTITUTION:The temperature and the growth rate of crystal are the main controlling factors for the preparation of the high-quality artificial beryl single crystal. In the present procedure, the rate of dissolution is made controllable by using vitrified raw material and transparent quartz. Concretely, the quality and the yield of the single crystal can be improved by selecting and vitrifying the raw material for the molten salt process, and using the vitrified material in combination with transparent quartz. |
