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Niobium single crystal 41Nb92.906
Discovered in 1801 by C. Hatchett at London, England.
[Greek: niobe = daughter of Tantalus of Greek mythology]
French: niobium
German: niobium
Italian: niobio
Spanish: niobio
Description: Niobium is a shiny, silvery metal, which is soft when pure. It resists corrosion due to an oxide film on the surface. Niobium is attacked by hot, concentrated acids, but resists attack by alkalis, even when they are molten. Niobium is used in stainless steels.
| Metal single crystal properties | ||
|---|---|---|
| State: | single crystal | |
| Crystal structure: | bcc | |
| Production method: | Floating zone | |
| Standard size: | diameter 8-12mm thickness 1-2mm |
|
| Orientation: | (100), (110) and (111) | |
| Orientation accuracy: | <2°, <1°, <0.5° or <0.1° | |
| Polishing: | as cut, one or two sides polished | |
| Roughness of surface: | <0.03µm | |
| Purity: | 99.99% | |
| Typical analysis (ppm): | C 25 H < 1 O 15 N < 5 Ag < 0.9 Al 3.6 As 0.29 Cl 0.66 Co 0.55 Cr 1.8 |
Fe 3.4 K 0.18 Li 0.22 Mg 0.45 Na 0.69 Ni 1 S 1.4 Si 17 Ta 180 Zn 0.48 Nb balance |