Silicon Nitride Ceramic Ring Insulation Pad Has Good Thermal Shock Stability
Product Overview
Silicon nitride ceramics have high strength, especially high-purity silicon nitride, which is one of the hardest substances in the world.
Very strong corrosion resistance, can be used in strong acids and alkalis, soluble in hydrofluoric acid but does not react with other organic acids.
Silicon nitride ceramics have excellent comprehensive performance:
1. Very strong corrosion resistance, in addition to concentrated HF, it can be used in other strong acids and alkalis.
2. High temperature resistance, when it can withstand 1200℃ in an oxidizing atmosphere, it can withstand a maximum of 1500℃ in a reducing atmosphere.
3. Non-magnetic, electrical insulation, low thermal conductivity, can be used for insulating materials.
Product parameter table
| Colour | dark grey |
| Density (g/cm3) | ＞3.2 |
| Relative density | 99% |
| Hardness (HV) | 14-16 |
| Fracture toughness (MPa•m1/2) | 6-7 |
| Normal temperature flexural strength (MPa) | 600-800 |
| Coefficient of expansion (μm/K) | 20-400℃ | 3.2 |
| 400-1000℃ | 4.3 |
| Dielectric strength (KV/mm) | ＞13 |
Resistivity
(Ω·cm) | 20℃ | ＞1014 |
| 500℃ | ＞1011 |
| Thermal conductivity (W•(m•K)-1) | 15-22 |
| Acid and alkali corrosion resistance | excellent |
| Thermal shock resistance ΔT℃ | 1300 |
| Maximum operating temperature | 1600 |
| Apparent porosity% | 0 |
Product features
Product features: high temperature and high strength, good thermal shock stability, good fatigue toughness, high fatigue willfulness, high room temperature bending strength, wear resistance, oxidation resistance and corrosion resistance.
Applications
This product has been widely used in polysilicon reduction furnaces, military manufacturing, aviation, and power.
Product Picture
- High temperature resistance. At 1200 ℃, the strength and hardness are almost unchanged. It can be used in a high temperature environment. It will not melt under high temperature and will not decompose until 1900 ℃.
- Non-magnetic, electrical insulation, low thermal conductivity, can be used for insulating materials
- Low density (3.26G/CM3), light weight, higher strength and hardness than general ceramic materials, can be used as wear-resistant materials.
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Product packaging
Carton packaging or according to customer requirements
FAQ
1. Are you a businessman or a manufacturer?
We are a company, we have our own factory
2. How long is your delivery time?
Negotiable
3. Can the product be customized?
Can be customized
4. What is the product packaging?
Carton or according to customer requirements
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Good Thermal Shock Stability Silicon Nitride Ceramics Ring Images
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