Materials / Ceramic
Ceramic Alumina 96%
Ceramic Alumina 96% (CoorsTek AD-96) strength, stiffness, density and thermal properties, with their source.
A panel in Ceramic Alumina 96%, as-sintered finish.
| Process | Sintered ceramic (pressed and fired) |
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| Mechanical |
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| Yield strength | not given (tensile used) |
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| Ultimate tensile strength | 221MPasourcetypical tensile strength, 25 °C (ACMA Test #4) |
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| Compressive strength | 2,068MPasourcetypical, 20 °C (ASTM-C773) |
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| Flexural strength | 358MPasourceflexural strength (MOR), 20 °C (ASTM-F417) |
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| Elongation at break | not sourced |
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| Young's modulus (stiffness) | 303GPasourcetypical, 20 °C (ASTM-C848) |
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| Density | 3,720kg/m³sourcetypical (ASTM-C20) |
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| Strength to weight | 59.4kN·m/kg |
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| Stiffness to weight | 81.5MN·m/kg |
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| Poisson's ratio | 0.21sourcetypical, 20 °C (ASTM-C848) |
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| Shear modulus | 125GPa |
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| Bulk modulus | 174GPa |
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| Speed of sound | 9,025m/s |
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| Thermal |
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| Thermal conductivity | 24.7W/m·Ksourcetypical, 20 °C (ASTM-C408) |
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| Thermal expansion | 8.2µm/m·Ksourcemean, 25-1000 °C (ASTM-C372) |
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| 100 mm part over a 50 °C swing | 41µm growth |
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| Specific heat | 880J/kg·Ksourcetypical, 100 °C (ASTM-E1269) |
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| Heats up and cools (diffusivity) | 7.55mm²/s |
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| Thermal shock resistance | 1,736W/m |
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| Values for | CoorsTek AD-96, nominal 96% Al2O3 sintered alumina, typical values; CoorsTek "Ceramic Seal Material Properties" (© 2018, 01899 F). AD-96 is the general 96% grade, not the ADS-96R substrate grade. |
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Stiffness against densityStrength against density
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