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| | | | Macor Properties
| Mechanical | |
| SI/Metric | Imperial | | Density | 2.52 g/cc | 157 lb/ft3 | | Porosity | 0% | 0% | | Young’s Modulus (25°C) | 66.9 GPa | 9.7x106 psi | | Poisson’s Ratio | .29 | .29 | | Shear Modulus (25°C) | 25.5 GPa | 3.7x106 psi | | Hardness | 250 Knoop 100g | 48 Rockwell A | | Flexural Strength | 94 MPa | 13,600 psi | | Compressive Strength | 345 MPa | 50,000 psi | | Fracture Toughness | 1.53 MPa • m1/2 | 1,390 psi • in1/2 | | Coefficient of Kinetic Friction (25°C) | | | | — – against steel | .12 | .12 | | — – against aluminum | .15 | .15 | | — – against Macor | .15 | .15 |
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