high temperature resistance Corrosion Resistant Si3N4 Silicon Nitride Ceramic Grinding Balls
Product Features
Silicon nitride has a low self-diffusion coefficient and strong resistance to impurity diffusion and water vapor penetration; silicon nitride has good anti-corrosion, anti-oxidation, friction resistance, self-lubricating and other properties; silicon nitride does not react with molten silicon Si and does not react with molten silicon Si. Si silicon melt is non-adhesive and has excellent corrosion resistance and detachability. The thermal conductivity of silicon nitride crucible is dozens of times higher than that of quartz crucible. Using high-purity and high thermal conductivity silicon nitride crucible instead of quartz crucible can greatly shorten the silicon melting time and furnace cooling time when pulling single crystal silicon. Not only does the production efficiency improve Improvement, and power consumption is also reduced, saving energy and production and operation costs.
Applications
- New energy
- Medical
- Electricity
- Petroleum
- Chemical industry
- Aerospace
- Military industry
- Electronics
- Semiconductor manufacturing components, etc.
Quartz crucible VS Silicon Nitride Crucibles
| Physical Performance Indicators | Quartz crucible | Silicon Nitride Crucibles | ||
| Maximum operating temperature | 1650 | 1800 | ||
| Bulk density | ≥1.85 | 3.25 | ||
| Apparent porosity | ≤15 | ＜2 | ||
| Normal temperature compressive strength | ≥55 | ＞3500 | ||
| Normal temperature flexural strength | ≥20 | 700-1000 | ||
| Thermal Conductivity | 0.6-1.7 | 28.8-60 | ||
| Thermal expansion coefficient | ≤0.9 | 3.28 | ||
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