Seed Rod The Sapphire Shi Changjing Furnace Thermal Field
- Details
- Category: Molybdenum & Sapphire Growth Furnace News
- Published on 21 November 2013
- Written by Cloudy
- Hits: 295
Sapphire Dan Changjing furnace thermal connection seed, regardless of whether the material is tungsten or 
molybdenum,which used in a furnace, has been completely re-crystallization and brittle, care must be taken in the subsequent use of the process, Beware of crystal growth on the way seed rod:the seed rod fracture happening.
Physical and Chemical properties:
1 Purity: Mo ≥ 99.95% or W ≥ 99.95%;
2 Density: Mo Material ≥ 10.2g/cm3 or tungsten ≥ 19.2g/cm3 of;
Application temperature environment: ≤ 2300 ℃.
1 The coefficient of thermal expansion (0-1600 ° C): Mo 6 × 10-6 W 4.98 × 10-6
2 The yield strength: Mo (1600 ° C) to 50MPa W (2080 ° C) 25MPa.
Completely re-crystallization temperature of about 2050 ° C: W; Mo about 1050 ° C.
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