Cobalt is one of the most widely recognized metals in the world. It has a density of 8.9 g/cc, a melting point of 1,495°C, and a vapor pressure of 10-4 Torr at 1,200°C It is a lustrous, hard metal that is gray in appearance and characteristically ferromagnetic. One of its most popular uses is as a blue pigment found in paint, jewelry, and glass. It is often alloyed with other metals to make engine parts and cutting tools. Its two main vacuum applications are as a ferromagnetic layer in the production of magnetic storage media and as a transitional layer in battery fabrication.
Cobalt (Co) Specifications:
Material Type | Cobalt † |
Symbol | Co |
Atomic Weight | 58.9332 |
Atomic Number | 27 |
Color/Appearance | Lustrous, Metallic, Grayish Tinge |
Thermal Conductivity | 100 W/m.K |
Melting Point (°C) | 1,495 |
Coefficient of Thermal Expansion | 13.0 x 10-6/K |
Theoretical Density (g/cc) | 8.9 |
Ferromagnetic | Magnetic Material |
Z Ratio | 0.343 |
Sputter | DC |
Max Power Density (Watts/Square Inch) | 80* |
Comments | Alloys with W/Ta/Mo. |
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