High - Strength Structural Ceramic Silicon Nitride Ceramic Ring
Product Overview
Silicon nitride ceramic is an inorganic material ceramic that does
not shrink during sintering. Silicon nitride has high strength,
especially hot-pressed silicon nitride, which is one of the hardest
substances in the world. With high strength, low density, high
temperature resistance and other properties.
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 | 1800 |
| 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 ℃.
.
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
