Method of increasing zinc sulfide hardness

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United States of America Patent

PATENT NO 9863040
SERIAL NO

15178601

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Abstract

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A method is directed to increasing the hardness of zinc sulfide. 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.

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Patent Owner(s)

Patent OwnerAddress
HELLMA MATERIALS GMBH07745 JENA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bai, Hua Lake Jackson, US 113 414
Goela, Jitendra S Andover, US 40 889
Pickering, Michael A Dracut, US 34 635
Wang, Hangyao Pearland, US 18 10

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