Tantalum pentoxide (Ta2O5) is a crystalline solid and white in appearance. It is a high-index, low-absorption material usable for coatings.
Tantalum Oxide Specifications
| shape | Color | Purity | Package | Storage | ||
| Sinter | Granule | 1-3 mm / 3-5 mm / Upon demand | Grey White | 99.99% | 1 Kg/Bag | Avoid exposure to sunlight & acid Keep dry |
| Tablet | 10×5 mm / Upon demand |
Characteristics of tantalum pentoxide
| CAS Number | Density (g/cm3) | Boiling point (Cº) | Melting point (Cº) | Refractive index at 550 (nm) | Transparency range (µm) | Evaporation source | |
| 1314-61-0 | 8.7 | / | 1800 | 2.16 | 0.35-9 | RE,RS | |
| Applications: | Filter; Hr coating; Insulating coating | ||||||
Evaporation technique for Ta2O5
It can be deposited by reactive electron-beam evaporation or by sputtering. A tantalum or graphite crucible liner can be used for electron-beam.