Industrial Heat Resistant 96% Aluminum Oxide Ceramic , Alumina Ceramic Plate
Industrial Heat Resistant 96% Aluminum Oxide Ceramic , Alumina Ceramic Plate
1. Description
1.Raw material: 95% ~ 99.7% alumina optional
2.Colors: White, ivory, pink, black, green, blue optional.
3.Different tolerance level capability via CNC maching, fine grinding and laser cutting.
4.Supporting prototyping need to high volume cost down program.
5.Besides, we offer zircona ceramic plate, silicon carbide ceramic plate.
Features:
It can resistant up to 1650°C, high voltage, wear-resisting,high Hardness, high Strength, no porosity.
Key parameters control capability:
| Max. dimensions | 600mm x 500mm | Min. thickness | 0.30mm |
| Precision process | CNC maching, grinding, lapping | Min. tolerance | +/-0.005mm |
| Roundness | 0.005mm | Flatness | 0.002mm |
| Roughness | Best to be Ra0.025 | Liner straightness | 0.01mm |
| Surface finish | Polishing or metallized | ||
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Visual quality: 1. No cracks, no dark dots, no contamination and sharp edges; 2. Evenly distributed glaze with very smooth surface Application: It always works as a ceramic lining plate, transtional ceramic plate, circuit board for heating resistant, electrical insulation, high tempreature resistant, in electronics apparatus. |
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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 |
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