| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multilayer crucible for casting a silicon ingot which can suppress dissolution of oxygen into the silicon ingot. <P>SOLUTION: The multilayer crucible 1 for casting the silicon ingot includes an outer layer silica layer 3 including at least one layer of an outer layer stucco layer 30 made by binding 500-1,500 μm coarse fused silica sand 31 with silica and provided inside a mold 2, and an inner layer silica layer 4 including at least one layer of an inner layer stucco layer 40 made by binding 50-300 μm fine fused silica sand 41 with silica and provided inside the outer layer silica layer 3, wherein the inner layer stucco layer 40' of the outermost surface of the inner layer silica layer 4 contains barium hydroxide or barium carbonate having 0.1-0.01 μm average particle size. <P>COPYRIGHT: (C)2013,JPO&INPIT |
