Ultroviolet (UV)- and thermal-stability of absorbing coatings for space instrumentation

Details Ultroviolet (UV)- and thermal-stability of absorbing coatings for space instrumentation Ultroviolet (UV)- and thermal-stability of absorbing coatings for space instrumentation

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2210..681w&link_type=abstract

Proc. SPIE Vol. 2210, p. 681-690, Space Optics 1994: Space Instrumentation and Spacecraft Optics, Thierry M. Dewandre; Joachim J

Physics

Optics

Scientific paper

Absorbing coatings for space-borne optical instruments must accept - besides optical requirements - unusual challenges regarding their chemical stability and their emission of gaseous and condensable materials under space conditions. Consideration of mass balances according to ANSI/ASTM E 595 do not provide enough information for proper choice of the coatings in the vicinity of sensitive optical elements. By in-situ mass spectrometric and XPS measurements we have investigated chemical changes of different black paints and inorganic coatings, their outgassing and the contamination of the surfaces near the coatings. In general, organic black paints are threatened by UV- irradiation and by thermal loads. Changes of their chemical composition under energetic UV-irradiation and the intense emission of contaminating materials were proved. The inorganic coatings investigated do not change their chemical composition and cause only comparatively small contamination on surfaces in their vicinity. For reducing the problem of contamination in optical systems it is still necessary to make available appropriate inorganic coatings with improved absorbing characteristics. However, if lower absorption can be tolerated, the use of inorganic coatings in sensible optical equipment should be considered already now.

Affiliated with

Also associated with

No associations

Rating

Ultroviolet (UV)- and thermal-stability of absorbing coatings for space instrumentation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ultroviolet (UV)- and thermal-stability of absorbing coatings for space instrumentation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultroviolet (UV)- and thermal-stability of absorbing coatings for space instrumentation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1712923