Broadband Reflective Coating Process for Large FUVOIR Mirrors, Phase I

Metadata Updated: May 2, 2019

ZeCoat Corporation will develop and demonstrate a set of revolutionary coating processes for making broadband reflective coatings suitable for very large mirrors (4+ meters). Decades of research and flight missions (Hubble, GALAX and FUSE) have utilized metal fluorides such as, MgF2 and LiF, applied to Al to achieve FUVOIR coating requirements. While metal fluoride-protected Al remains the best option for meeting broadband reflectance requirements (90-nm to 2500-nm), ZeCoat offers a means to build upon the best known and proven coating recipe (the GSFC 3-step process) by: 1) utilizing ZeCoat's unique precision motion-controlled deposition system to uniformly apply a 5-nm layer (a requirement of the GSFC recipe) of coating material to a large coating area, 2) protecting mirror assemblies from damaging high temperatures by heating only the mirror surface using radiant heat (the GSFC process requires a 220C metal-fluoride deposition temperature), 3) using an FUV reflectometer (120-nm to 180-nm) integrated into the coating chamber to optimize the coating process for FUV reflectance and 4) investigating the feasibility of using a layer of Sn to protect LiF from degradation due to atmospheric moisture and organic contamination during ground storage and re-evaporate the Sn once the observatory is placed in-orbit.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Dates

Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_17972
Maintainer
TECHPORT SUPPORT
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20190501230127
Harvest Object Id a600958f-a51e-41f9-97dd-3a28ba5bb987
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2014-12-01
Homepage URL https://techport.nasa.gov/view/17972
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 691c02f33716e60bde491a854c1e0ddb560cf229
Source Schema Version 1.1

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