Crystal growth apparatus with ceramic coating and methods for preventing molten material breach in a crystal growth apparatus

摘要

A method for preventing molten material breach in a crystal growth apparatus includes providing a chamber of the crystal growth apparatus which is coated with a ceramic material. The chamber can be coated on an interior surface to prevent damage to the chamber itself, which is made of steel, and to prevent steam explosions in the water-cooled chamber. Ceramic blanket layers also can be provided over the coated interior surface of the chamber. As a result, it is possible to produce high quality crystalline products while minimizing the hazards and costs in the event of a spill of molten material.

主权项

1. A directional solidification apparatus, comprising:
a chamber; a crucible provided in the chamber, the crucible configured to receive at least a charge; and at least one heating element for heating and at least partially melting the charge contained in the crucible to form a molten material, wherein the chamber has an inner wall with an interior surface, and the interior surface that is adjacent to and below the crucible is coated with a ceramic coating for preventing the molten material from leaking out through the inner wall of the chamber.