Bar evaporation source having improved wettability
AssigneeGTE Products Corporation
InventorCharles F. Jerabek
Life of this patent
Estimating the term…
Abstract
As intermetallic composite, bar evaporation source constructed from a mixture of borides and nitrides for use in the evaporation of metals, e.g., aluminum, is arc sprayed with a layer of the metal to be subsequently evaporated therefrom before use. The coated layer of the metal to be evaporated increases the wettability of the bar source cavity and creates greater electrical stability when compared with similar but uncoated bars.
Claims3
An intermetallic composite, bar evaporation source for use in the evaporation of a given metal, said source being comprised of a mixture of borides and nitrides and having an evaporant cavity therein, the improvement comprising:
- said cavity including a surface and a spray coating of said given metal in intimate contact with said surface.
Dependencies are inferred from the claim text.