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Ta2O5 99.99% 0.7-3.5mm 5kg - 0481511

Quantity

100 g5 kg500 g

Ta2O5 99.99% 0.7-3.5mm 5kg - 0481511

Specifications

Coating material

Tantalum oxide

Purity

99.99%

Form

Granulate

Dimensions

0.7 - 3.5 mm

Quantity

5 kg

Theoretical density at 20°C in g/cm³

8.2

Melting point in °C

1862-1880

Temperature at vapor pressure

10⁻² mbar in °C

2000

10⁻¹ mbar in °C

2200

Type of evaporation

Melting

Good

Evaporation source (typically)

E-gun

Directly from Cu crucible

Good

Liner material

W

Good

Boat

Boat material

W

Possible

Mo

Good

Specific evaporation conditions

Preparation of base melt (premelt)

Possible

Reactive gas pressure

Good

Substrate temperature range

100 - 200 °C

Good

200 - 300 °C

Good

Ion or plasma assistance

desirable / indispensible

Good

Film transparency

Low

0.35

High

10

Film refractive index n / extinction coefficient k

at 550 nm: n

2.07-2.13

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