Polishing Alumina Ceramic Disc Insulating Alumina Round Plate
The alumina plate is made of aluminum oxide ceramics. Alumina is a
ceramic material with high thermal conductivity, compressive
strength, and thermal shock resistance. It also has a low thermal
expansion, making it a suitable material for furnace use, in the
crucible, tube, and thermocouple sheath form.
Aluminum oxide ceramic plates can withstand high temperatures and
maintain high strength and hardness. Alumina ceramic plates also
have excellent performances in electrical insulation, high chemical
resistance, good were resistance and heat resistance, and low
thermal expansion. YUBEI CERAMICS co., have various sizes of
semi-finished shapes in stock and are able to customize kinds of
alumina components for you.
Manufacturing:
| Size | Within 500mm can be made |
| Material | 99% Al2O3 |
| Surface | Grinding or polishing |
| Packing | Carton, wooden case, pallet |
| Delivery time | About 30 days |
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 |
95% Aluminum Oxide Ceramic Plate
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. What's the price for it?
It depends. Prices are caculated by the drawing size and structure.
3. 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.
4. 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.
5. 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.
6. Can you do the finish maching?
Yes, we have lathes, grinding machines, milling machines,
carves-milling machines to make sure products' accuracy.
