CZR Graphite
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1Measured using Hg porosimetry method. 2Average for temperature range of RT - 800°C. 3Measured using 4-point bend method. 4Estimated at 70% of flexural strength. 5Estimated value. 6Temperature that results in 1% wt. loss in 24 hrs. Oxidation threshold increases by approximately 100°C if graphite is purified. Test sample size equals 0.5” x 0.5” x 1.0”.
Reference Materials
Applications
- Ion implant components
Specifications
| Particle size: | 5 µm (200 µin) |
| Pore size:1 | 0.8 µm (32 µin) |
| Coefficient of thermal expansion:2 | 7.8 µm/m °C (4.3 µin/in °F) |
| Compressive strength: | 93 MPa (13,500 psi) |
| Flexural strength:3 | 61 MPa (8800 psi) |
| Tensile strength:4 | 43 MPa (6200 psi) |
| Shore hardness: | 70 |
| Electrical resistivity: | 1840 µΩ-cm (725 µΩ-in) |
| Apparent density: | 1.65 g/cm3 (0.0596 lb/in3) |
| Thermal conductivity: | 76 W/m-K (44 Btu-ft/hr/ft2 °F)5 |
| Oxidation threshold6: | 440° C (820° F) |
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