Chromium
Cr: Chromium for vacuum optical coating or metal plating is one of the most popular metals in the world with a lot of applications.
Specifications
| Shape | Color | Purity | Package | Storage | |
|---|---|---|---|---|---|
| Granule | 1-3 mm, 3-5 mm, 5-10mm Upon demand | Grey metal luster | 99.95% 99.9% | 1 Kg/Bag | Avoid exposure to sunlight & acid Keep dry |
| Powder | ≥ 200 mesh | Grey | |||
| Applications | Vacuum coating; Metal film plating | ||||
Evaporation technique
Chromium sublimes under high temperatures so it is difficult to be thermally evaporated. It can be evaporated by electron beam using a graphite or tungsten crucible liner.