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Iridium single crystal 77Ir192.2
Discovered in 1803 by S. Tennant at London, England.
[Latin: iris = rainbow]
French: iridium
German: iridium
Italian: iridio
Spanish: iridio
Description: Iridium is a hard, lustrous, silvery metal of the so-called platinum group. It is unaffected by air, water, and acids, but dissolves in molten alkali. Iridium is used in special alloys and spark plugs.
| Metal single crystal properties | ||
|---|---|---|
| State: | single crystal | |
| Crystal structure: | fcc | |
| Production method: | Floating zone | |
| Standard size: | diameter 8-10mm 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): | Ag 0.50 Al 8,00 Au < 0,10 C 12,00 Ca 2,00 Co 4,00 Cu 0.60 Cr 2,00 Fe 9,00 |
Ni 0,50 O 8,00 Pb 2,00 Pt 10,00 Rh 15,00 Si 5,00 Ti 7,00 W 10,00 Ir balance |