Tungsten · Thermal vacuum evaporation — High temperature and maximum resistance

Tungsten Boats

Tungsten boats for resistive thermal vacuum evaporation at very high temperature. Made from rolled W sheet and machined to standardised shapes or custom design. Suitable for evaporation of high-melting-point materials: Pt, Ti, Zr, Ni, Fe, Mo and refractory alloys.

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Standard sizes 50-150 mm L × 7-30 mm W × 0.5-2 mm t
Shapes: flat rectangular, centre trough, dimple (central pocket)
W >= 99.95% - higher service temperature than Mo boats
Service temperature > 2 400 °C in vacuum < 10^-4 mbar
Suitable for Pt, Ti, Zr, Ni, Fe, Mo, Nb and refractory alloys
Custom: any geometry to customer CAD drawing

Specifications

Dimensions and standards

Tungsten Boats — Specifications
Standard length	50–150 mm
Width	7–30 mm
Thickness	0.5–2 mm
Material	Pure W ≥ 99.95%
Shape	Rectangular, trough, dimpled — standard or custom
Max. temperature	> 2,400 °C in vacuum

RoHS 2

Industrial uses

Applications

Platinum and palladium evaporation for contacts in microelectronics
Ti and Zr deposition for anticorrosion and decorative coatings
Metallising ceramic and glass substrates at high temperature
Production of refractory thin films in R&D
Laboratory and pilot-scale PVD systems with high-melting-point materials

Same material

Wire

Ø 0.01–3 mm · Drawn

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Plates & Sheets

e 0.1–20 mm · Rolled

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