Advantages of carbon/carbon composites over graphite products-2
release time:
2022-04-28
When used as a crucible for pulling single crystal silicon, due to the large expansion stress of the quartz crucible on the graphite crucible, the graphite crucible needs to be made into three parts, or a thermal expansion groove is opened on the crucible; while the heating furnace using carbon/carbon composite materials Since the inner product does not need to open a thermal expansion tank, it can be made into a whole, and a uniform thermal field can be obtained in the quartz crucible, which improves the yield and avoids the loss caused by the silicon leakage accident.
When used as a crucible for pulling single crystal silicon, due to the large expansion stress of the quartz crucible on the graphite crucible, the graphite crucible needs to be made into three parts, or a thermal expansion groove is opened on the crucible; while the heating furnace using carbon/carbon composite materials Since the inner product does not need to open a thermal expansion tank, it can be made into a whole, and a uniform thermal field can be obtained in the quartz crucible, which improves the yield and avoids the loss caused by the silicon leakage accident.
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