| 摘要 |
<p>Ceramic crucible for the manufacture of a silicon ingot, having a base and walls, the surfaces of which define an internal volume, said crucible being characterized in that it comprises: - a core made of a material consisting of silica, of silicon nitride, of silicon oxynitride, of silicon aluminium oxynitride, of graphite, of silicon carbide or of a mixture of at least two of these compounds, the open porosity of which is between 5% and 60% and the median pore diameter of which is between 0.1 and 10 micrometres, and - a layer of coating on said surfaces defining the internal volume of the crucible, said layer having a porosity of between 15% and 50% and consisting essentially of at least one SiAlON crystalline phase.</p> |
