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[China]
Trade Verify
Address: Dagang Village,Dingshu Town, Yixing City,Jiangsu Province, China
Contact name:Bruce
Yixing City Kam Tai Refractories Co.,ltd |
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Verified Suppliers
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Durable High Alumina Refractory Ceramic Lining Plates With 0.5-2mm Thickness
1. Description
Al2O3 plate is the most popular ceramic plate, with excellent heat
resistance,
high mechnical strength , abrasion resistance and small dielectric
loss .
The surface of alumina ceramic plate is quite smooth and low
porosity , 99.6% alumina substrate
is suitable for thin film device , 96% alumina substrate is
suitable for thick film device application.
2.Details
1. material: Alumina ceramic etc.
2. method of moulding: thermal casting/drying press/extrusion
3.colour: white/light yellow
4.sintering temperature: 1580c
5.surface finish:Ra0.4 &SIM RA 0.8&mum etc, upon your requirement.
6.package: packing with carton and ship with wooden box.
7.we can produce them by your molds or te drawings you require.
3. Specification
| Item | Test Condition | Unit Symbol | 95% Alumina ceramics | 99% Alumina ceramics | 99.7% Alumina ceramics |
| The main chemical ingredient | Al2O3 | Al2O3 | Al2O3 | ||
| Bulk Density | g/cm3 | 3.6 | 3.89 | 3.96 | |
| Maximum Use Temperature | 1450°C | 1600°C | 1650°C | ||
| Water absorption | % | 0 | 0 | 0 | |
| ROHS Hardness | ≥85 | ≥89 | ≥89 | ||
| Flexural strength | 20° C | MPa (psi x 103) | 358 (52) | 550 | 550 |
| Compressive Strength | 20° C | MPa (psi x 103) | 2068 (300) | 2600(377) | 2600(377) |
| Fracture Toughness | K(I c) | Mpa m1/2 | 4-5 | 5.6 | 6 |
Coefficient of thermal expansion | 25-1000° C | 1X 10-6/°C | 7.6 | 7.9 | 8.2 |
Coefficient of thermal conductivity | 20° C | W/m °K | 16 | 30.0 | 30.4 |
| Thermal Shock Resistance | Tc | °C | 250 | 200 | 200 |
| Dielectricity constant | 1MHz.25°C | 9 | 9.7 | 9.7 | |
| Dielectric strength | ac-kV/mm (ac V/mil) | 8.3 (210) | 8.7 (220) | 8.7 (220) | |
| Volume Resistivity | 100°C | ohm-cm | > 1013 | > 1014 | > 1014 |
