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 | 10x5 mm Upon demand |
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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.