一种碳陶坩埚及制备工艺
By preparing carbon fiber crucible blanks and combining them with a two-step resin densification and ceramic sintering process, carbon-ceramic crucibles are formed, which solves the problem of frequent replacement of quartz crucibles and carbon-carbon crucibles in single crystal furnaces, and achieves lower material consumption and longer service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DEYI HI TECH (HANGZHOU) TECH CO LTD
- Filing Date
- 2024-03-26
- Publication Date
- 2026-07-17
AI Technical Summary
In existing single crystal furnaces, quartz crucibles and carbon-carbon crucibles require frequent replacement, consume a large amount of materials, have short service life, and exhibit poor thermal reliability, resulting in high costs and increased energy consumption.
Carbon fiber is used as raw material to prepare carbon fiber crucible blanks through three-dimensional weaving, needle punching and stitching processes. Combined with two-step resin densification and ceramic sintering processes, carbon ceramic crucibles are formed. Boron nitride is used to prevent silicon vapor corrosion.
This extends the service life of carbon ceramic crucibles to 12-18 months, reduces replacement frequency and material consumption, and improves the reliability of the thermal field and product strength.
Smart Images
Figure BDA0004759688030000071