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Key Properties and Advantages
The use of 99% alumina ceramic gives this spare plate exceptional characteristics:
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Extreme Hardness & Wear Resistance: This is its primary advantage. With a Vickers hardness close to 1600 Hv, it is significantly harder than most metals and many abrasive materials (like sand, ash, or ore particles). This dramatically reduces erosion and extends the service life of the valve, sometimes by factors of 10 to 100 compared to metal parts.
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Excellent Corrosion Resistance: It is highly inert and resistant to corrosion from a wide range of acids, alkalis, and solvents at high temperatures. This makes it ideal for chemical processing and mining applications.
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High Compressive Strength: It can withstand very high crushing loads, making it suitable for high-pressure valve applications.
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High-Temperature Stability: It maintains its mechanical properties and dimensional stability at temperatures up to 1700°C (3092°F), making it perfect for high-temperature environments.
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Low Friction Coefficient: The smooth surface of the ceramic plate reduces friction, which can lower operating torque and improve sealing performance.
Technical Parameters
| Item |
Unit |
Zirconia ceramic |
99% alumina ceramic |
96% alumina ceramic |
95% alumina ceramic |
Steatite ceramic |
Mullite ceramic |
Cordierite ceramic |
| Bulk density |
g/cm3 |
6 |
3.8 |
3.7 |
3.6 |
2.8 |
2.2 |
2.3 |
| Water absorption |
% |
0 |
0 |
0 |
0 |
0 |
12 |
12 |
| Thermal Conductivity |
(w/m.k) |
10 |
19-30 |
16-28 |
14-24 |
2-3 |
2-6 |
1.3-1.8 |
| Resistance to thermal shock,Minimum |
TK? |
70 |
150 |
140 |
140 |
80 |
150 |
300 |
| Withstand voltage,Minimum |
KV |
15 |
20 |
18 |
18 |
20 |
25 |
- |
| Flexural strength |
Mpa |
1000 |
300 |
280 |
240 |
120 |
120 |
30 |
| Sintering temperature |
℃ |
1500 |
1670 |
1600 |
1600 |
1250 |
1250 |
1250 |
| Maximum working temperature |
℃ |
1200 |
1500 |
1200 |
1200 |
800 |
1000 |
1000 |
Application
Specifically used for high-temperature and high-voltage insulation parts, circuit substrates, high-temperature devices, etc. As the main representative of precision ceramic materials, it is widely used in industries such as semiconductors, petrochemicals, and electronics.
Advantages
1. we support OEM and ODM;
2. We have a professional R&D team and technical support;
3. We provide real-time logistics update information;
4. We support 24-hour online service;
5. We support T/T,L/c payment;
6. We have a professional QC team to check the quality before delivery.
Certificate
FAQ
1. How can you get quotation?
Please kindly send me your drawing with technic requirement and demand quantity.
If you don't have the drawing, please kindly courier samples to us. we will quote our best price in 24 hours.
2. How can you get samples?
We can supply free samples if we have them in stock. If we haven't produce the products, we can supply some free samples after getting tool fee. Please take note that the courier fee should be at destination.
3. What’s the lead-time for samples and batch orders?
It is 18days for supplying samples. It is around 25days for batch orders.
4. Can I visit you?
Sure. If you're a volume buyer and would like to visit our in-house products and production line, please contact us to make an appointment.
