摘要 |
Crucible comprises a basic body with a bottom surface and lateral walls defining an inner volume. The basic body comprises (wt.%): silicon carbide (at least 65); and silicon oxide or nitride (12 to 30). The basic body also comprises at least one silicon oxide and/or nitride coating, at least on the surfaces defining the inner volume of the crucible. An independent claim is included for manufacturing the crucible. |