Silicon Nitride Wear - Resistant Ceramic Fitting Insulation Ring
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.
The product has the advantages of high density and uniformity, excellent thermal shock resistance, corrosion resistance, high temperature resistance, pollution-free, high insulation, and is not affected by a reducing atmosphere. It has a long service life and is especially suitable for harsh conditions such as hydrogen reduction furnaces. Electrode protection. Can be processed according to customer demand specifications.
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 ℃.
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Product packaging
Packed in carton
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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Silicon nitride ceramic high-strength insulating wear-resistant ceramic ring Images
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