Insulating Ceramic Pad 99% Alumina Ceramic Material Block High Temperature
Alumina ceramics (aluminum oxide, Al2O3) are the most commonly used technical ceramics due to their generally useful properties and good price/performance ratio. Alumina ceramics are commonly subdivided according to their alumina content ranging from 75% to 99.99%. Higher purity alumina demonstrates enhanced wear and corrosion resistance - creating a continuous scale of various alumina grades, compositions, and performance.
Alumina ceramics are used in both general use and specialized applications. A grade is selected to fit the application environment. Alumina compositions and microstructures can be formulated to meet the specific performance requirements of more demanding applications.
- Wear resistance
- Electrical insulator
- Dielectric strength
- Low dielectric loss
Specifications:
| Properties | Item | Unit | 99% Alumina | 95% Alumina |
| Mechanical Property | Color | -- | Light Yellow | White |
| Mechanical Property | Density | g/cm3 | 3.85 | 3.6 |
| Mechanical Property | Bending Strength | MPa | 310 | 300 |
| Mechanical Property | Compressive Strength | MPa | 2400 | 2300 |
| Mechanical Property | Elastic Modulus | GPa | 340 | 320 |
| Mechanical Property | Fracture Toughness | MPam1/2 | 3-4 | 3-4 |
| Mechanical Property | Weber Coefficient | m | 12 | 12 |
| Mechanical Property | Vickers Hardness | HV0.5 | 1600 | 1400 |
| Thermal Property | Coefficient of Line Thermal Expansion | 10-6K-1 | 7-8 | 7-8 |
| Thermal Property | Thermal Conductivity | W/mK | 29 | 20 |
| Thermal Property | Thermal Shock Resistance( in water) | ΔT℃ | 200 | 250 |
| Thermal Property | Max Working Temperature | ℃ | 1600 | 1500 |
| Electrical Property | Volume Resistance at 20℃ | Ωcm | >1014 | >1014 |
| Electrical Property | Dielectric Strength | V/m | 15X106 | 15X106 |
| Electrical Property | Dielectric Constant | εr | 10 | 9 |
99% Alumina Ceramic Block
FAQ:
1. Are you a factory?
Yes, we're a factory producing industrial ceramics professinally. Our main products are alumina ceramics, zirconia ceramics and sic ceramics.
2. Can you do the finish maching?
Yes, we have lathes, grinding machines, milling machines, carves-milling machines to make sure products' accuracy.
3. What's the size of it?
Products are always customized according to drawings or samples. Diameter and height within 500mm are available.
4. What's the price for it?
It depends. Prices are caculated by the drawing size and structure.
5. What's the production process?
Our products are made mainly in cold isostatic pressing, dry pressing and hot press moulding technique. Hot press moulding technique, which was used to shape small and medium size and complicated structure ceramic, is a favorable method.
6. How about the delivery?
Generally speaking, a ceramic production needs about 30 days to finish. Some special products maybe take a longer time. For some simple products, maybe 10-15 days is ok.
7. How's the packing?
The usual packing is cartons, wooden cases, or pallets. Ceramics are fragile products, will use some breakage-proof materials to protect them.
8. Which is the nearest port?
Shanghai port is the nearest one from us. It takes about 2-3 hours to get to shanghai port.
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99% Alumina Ceramic Material Block High Temperature Insulating Ceramic Pad Images
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