Tungsten Filaments are made using proven fabrication processes and are of the highest quality, reliability and consistency in the industry.
Please note that their utility is limited to evaporants which can be affixed to the source, typically in the form of wire. Multi-strand filaments are generally preferred because they offer a greater surface area than single-wire filaments. Because of their simplicity and low cost, wire sources are also used to evaporate metals such as Al, Ni, Fe, or Pt which are known to alloy with Tungsten. Under these conditions, the evaporant charge should be small compared with the mass of the filament, and the latter is quickly destroyed if the molten evaporant collects in one spot.
The benefits of using tungsten filaments include low cost, long life, high rates with low power, repeatability and ease of use. Custom fabrication is available upon request.
Please visit the individual material pages for evaporation source recommendations. Click here to go to the Materials Division Page.
