| Customization: | Available |
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| Application: | Aerospace, Architectural, Ceramic Decorations, Electronics, Home Use, Medical, Refractory |
| Flexural Strength: | >1000 MPa |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Optional Materials | alumina, zirconia, silicon carbide, silicon nitride, steatite optional |
Outer diameter | 0.5 ~800 mm |
Length | 1~1000mm |
Roughness | To be Ra0.05 |
Surface treatment | Polished, Glazed, Metalized availability |
Cosmetic | Smooth surface without contamination, deformation, and crack |
Property | Units | Materials | ||||
99.5%Al2O3 | 99%Al2O3 | 95%Al2O3 | ZrO2 | Si3N4 | ||
Density | g/cm3 | ≥3.85 | ≥3.80 | ≥3.60 | ≥6.0 | ≥3.2 |
Water absorption | % | 0 | 0 | 0 | 0 | 0 |
Hardness | HV | 1700 | 1700 | 1500 | 1300 | 1550 |
Flexural strength | Mpa | ≥379 | ≥338 | ≥320 | ≥1200 | ≥600 |
Compressive strength | Mpa | ≥2240 | ≥2240 | ≥2000 | ≥1990 | ≥2500 |
Fracture toughness | Mpa m1/2 | 4-5 | 4-5 | 3-4 | 6.5-8 | 6 |
Max. service temperature (Non-loading) | ºC | 1675 | 1600 | 1500 | 1000 | 1200 |
CTE (20-800ºC) | 1×10 -6 /ºC | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 8.0~9.5 | 3.1 |
Thermal shock | T(ºC) | ≥250 | ≥200 | ≥220 | ≥300 | ≤1000 |
Thermal conductivity(25ºC) | W/m.k | 30 | 29 | 24 | 3 | 15~20 |
Volume resistivity (25ºC ) | ohm.cm | >1 x 10 14 | >1 x 10 14 | >1 x 10 14 | >1 x 10 11 | >1 x 10 12 |
Insulation strength | KV/mm | 19 | 18 | 18 | 17 | |
Dielectric constant(1Mhz) | (E) | 9.7 | 9.5 | 9.5 | 29 | |
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