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Gold (Au) | 25,4 x 6,3 mm | 99,99%
Weight: 0.00309 kg
Diameter / thickness: Ø 25.4 mm x 6.3 mm
Purity: 99.99%
- Description
- Specification
Description
Gold is one of the most valuable and sought-after metals in the world. Since its discovery in ancient times, it has been used for jewellery, coins and tools. In today’s economy, it is most commonly used in jewellery. With its brilliant yellow lustre, gold is one of the most beautiful precious metals. It has a melting point of 1,064°C, a density of 19.3 g/cm³ and a vapour pressure of 10-4 Torr at 1,132°C, with an ideal evaporation temperature of around 1,400°C.
It is soft, dense, pliable, malleable and an excellent conductor of heat and electricity. Gold thin films are used in the manufacture of semiconductors, sensors, batteries and data storage devices.
| Material type | Gold |
| Symbol | Au |
| Atomic weight | 196.966569 |
| Atomic number | 79 |
| Colour/appearance | Metallic, gold |
| Thermal conductivity | 320 Watt/m.K |
| Melting point | 1,064 °C |
| Coefficient of thermal expansion | 14.2 x 10-6/K |
| Theoretical density | 9.32 g/cm³ |
| Z-ratio | 0.381 |
| Sputter | DC voltage |
| Max. power density | 100 watts/square inch* |
| Bonding type | Indium, elastomer |
| Remarks | Soft layer; not very adhesive. |
* This is a recommendation based on our experience with these materials in our sputter guns. Rates are based on unbonded targets and are material specific. Bonded targets should be operated at lower power to avoid bonding failure. Bonded targets should be operated at 20 watts/square inch or less depending on the material.
