Active Member
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[China]
Address: Hongwei Development Zone, Dingshu Town, Yixing City, Jiangsu Province
Contact name:ZHUANG
Yixing Weite Chinaware Co., Ltd |
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Silicon Nitride Ceramic Ring Thermal Insulation Ceramic Ring
Silicon nitride products are gradually replacing 99 ceramic alumina, silicon carbide, nitrogen carbon and other ceramic products with their superior performance (wear resistance, corrosion resistance, long life).
The company's silicon nitride products are divided into two types:
air pressure sintering and reaction sintering. Air pressure
sintering silicon nitride is mainly based on pipe fittings and
shaped parts, and reaction sintering silicon nitride is mainly
based on pipe fittings. With high quality and low price, we have
cooperated with many foreign customers.
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
Material Project | Alumina AL203 | Silicon carbide sic | Silicon nitride sin | Silicon nitride sin | ||||
| Color | Ivory | black | black | Milky white, gray black | ||||
| Content(%) | 99.5 | …… | …… | …… | ||||
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| Density | Kg/m³ | 3.9*10 | 3.16*10 | 3.3*10 | 6.0*10 | |||
Mechanical behavior
| Vickers hardness | Gpa | 16.0 | 23.0 | 14.0 | 13.2 | 12.7 | |
| Flexural strength | Mpa | 360 | 450 | 1020 | 1000 | 1470 | ||
| Compressive strength | Mpa | 2350 | …… | …… | …… | …… | ||
| Fracture toughness | Mpa | 4 | 2-3 | 7 | 4-5 | 4-5 | ||
Thermal performance
| Linear expansion coefficient | 40-400℃ | ×10-5/℃ | 7.2 | 3.7 | 2.8 | 10.5 | 10.8 |
| 40-800℃ | 8.0 | 4.4 | 3.3 | 11.0 | 11.3 | |||
| Thermal conductivity | W/(m·k) | 32 | 200 | 27 | 3 | 3 | ||
| Specific heat | J/(kg·k) | 0.78*10 | 0.67*10 | 0.65*10 | 0.46*10 | 0.46*10 | ||
| Thermal shock resistance (in water) | ℃ | 250 | …… | ＞800 | 300 | 350 | ||
| Electrical performance | Dielectric strength | V/m | 15*105 | …… | 13*105 | 11*105 | …… | |
| Volume resistance(20℃) | Ω·cm | ＞1014 | 108 | 1014 | 1013 | …… | ||
| Dielectric constant | …… | 9.6 | …… | 9.9 | 33 | …… | ||
| Loss factor | ×10-4 | 10 | …… | …… | 520 | …… | ||
1, cold isostatic pressing
2,Air pressure sintering
3, High compressive strength and flexural strength
4, Low thermal expansion coefficient
5,Excellent thermal shock resistance
6, non-stick aluminum and other non-ferrous metal melt
7, strong corrosion resistance
Widely used in thermostats, insulating parts, various thermal equipment, electric appliances, iron structure buildings, shipbuilding, etc. of various small household appliances.
Ceramic rings can also be used in lasers and industry.
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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Packed in carton
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
