Coatings

Details Coatings Coatings

1997-02-11

1999-12-28

Turner, Archene

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428432, 428698, 359359, C23C 1630

Patent

active

060079088

ABSTRACT:
A scratch resistant coating for the window of an infra red sensor comprises a layer of zirconium oxynitride or hafnium oxynitride. The formula of the coating is M.sub.1-(y+z) O.sub.y N.sub.z where y and z are both in the range 0.1 to 0.4. The coating and the window are both transmissive in the infra red and visible ranges of the spectrum.

REFERENCES:
patent: 4450201 (1984-05-01), Brill et al.
patent: 5336565 (1994-08-01), Muromachi et al.
patent: 5411794 (1995-05-01), Kawaguchi et al.
patent: 5493442 (1996-02-01), Buchholz et al.
patent: 5728456 (1998-03-01), Adair et al.

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