摘要:
A method for growing an ingot according to the embodiment includes filling a first powder in a crucible; raising a temperature of the crucible; forming a second powder by grain-growing the first powder; and growing the ingot by sublimating the second powder.
摘要:
An apparatus for fabricating an ingot according to the embodiment comprises a crucible for receiving a raw material, wherein the raw material comprises first powder and second powders having grain sizes different from each other. A method for providing a raw material according to the embodiment comprises preparing a crucible including a central area and an edge area which surrounds the central area; filling a first powder in the central area; and filling a second powder in the edge area, the second powder having a grain size different from a grain size of the first powder.
摘要:
Disclosed is an apparatus for fabricating an ingot. The apparatus includes a crucible to receive a raw material, a holder disposed at an upper portion of the crucible to fix a seed, and a filter part in the crucible. The filter part is spaced apart from a surface of the raw material.
摘要:
Disclosed are an apparatus and a method for fabricating an ingot. The apparatus includes a crucible receiving source materials therein; a holder fixing a seed located above the source materials; and an adhesive layer interposed between the holder and the seed and chemically bonded to the seed.
摘要:
Disclosed is an apparatus for fabricating an ingot. The apparatus includes a crucible receiving a raw material, and comprising an upper portion and a lower portion opposite to each other, and seed holders disposed at the upper and lower portions, respectively.
摘要:
Disclosed is an apparatus for fabricating an ingot. The apparatus comprises a crucible to receive a source material, and a temperature difference compensating part on the source material. The temperature difference compensating part comprises a plurality of holes.
摘要:
An apparatus for fabricating an ingot according to the embodiment comprises a crucible for receiving a raw material; and a filter part for selectively filtering a specific component in the crucible, wherein the filter part comprises a polymer.
摘要:
The present invention is related to a method of producing polycarbosilane by heating polydimethylsilane at low pressure within the range of 320˜450° C. using zeolite having the Si/Al or Si/B ratio of 1˜200 as catalyst. This invention uses a zeolite with the structure of ZSM-5, ZSM-11, ZSM-12, zeolite X and zeolite Y, which has the Si/Al or Si/B ratio of 1˜200, as catalyst. When polycarbosilane is produced using a specific zeolite as catalyst, Si/Al or Si/B ratio can be adjusted at any proportion, enabling acidity control of catalyst, and therefore the molecular weight of final products can be easily controlled and the product yield can be improved, compared to conventional solid acid catalysts.
摘要:
An apparatus for fabricating an ingot comprises an inner crucible for receiving a raw material; a seed holder placed on the raw material; and an outer crucible surrounding the inner crucible and comprising an open area in which a part of the raw material is exposed.
摘要:
An apparatus for fabricating an ingot according to the embodiment comprises a crucible for receiving a raw material; and a filter part for selectively filtering a specific component in the crucible, wherein the filter part comprises a polymer.