Increasing zinc sulfide hardness
AssigneesRohm and Haas Electronic Materials LLC, Dow Global Technologies LLC
InventorsJitendra S. Goela, Hangyao Wang, Hua Bai, Michael A. Pickering
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Abstract
The hardness of zinc sulfide is increased by adding selective elements within a specified range to the crystal lattice of the zinc sulfide. The increased hardness over conventional zinc sulfide does not substantially compromise the optical properties of the zinc sulfide. The zinc sulfide may be used as a protective coating for windows and domes.
Claims5
A composition comprising water clear zinc sulfide and 1.5 molar % to 3 molar % of silicon.
An article comprising a substrate and one or more layers of a composition comprising water clear zinc sulfide and 1.5 molar % to 3 molar % of silicon.
Dependencies are inferred from the claim text.