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3N5 Tungsten (W) Granules for Thin Film Coating by Evaporation
| Specifications | |||
| Material Type | Tungsten | ||
| Symbol | W | ||
| Purity | 99.95% | ||
| Size | φ3*3mm | ||
| Package Unit | 500g/ 1kg | ||
| Theoretical Density (g/cc) | 19.25 | Z Ratio | 0.163 |
| Color/Appearance | Grayish White, Lustrous, Metallic | E-Beam | Good |
| Atomic Weight | 183.84 | Thermal Evaporation Techniques | Direct in Hearth |
| Melting Point (°C) | 3,410 | E-Beam Crucible Liner Material | Tantalum |
| Coefficient of Thermal Expansion | 4.5 x 10-6/K | Temp. (°C) for Given Vap. Press. (Torr) | 10-8: 2,117 10-6: 2,407 10-4: 2,757 |
| Thermal Conductivity | 174 W/m.K | Comments | Forms volatile oxides. Films hard and adherent. |
