Solar Absorber Coating Study.
Abstract
The study has examined solar absorber coatings intended for use on a solar heat source system to provide thermal energy to drive spaceborne Vuilleumier cycle cryogenic refrigerators. The tests have evaluated potential coating durability for an expected 3 to 5 years in space at an operating temperature of 1600F. Two coatings, Al2O3-Mo-Al2O3 (AMA) and Al2O3-Pt-Al2O3 (APA) were tested on four substrates: stainless steel, Inconel, TZM and Cb-1 percent Zr. On stainless steel and Inconel substrates both coatings were found to withstand one hour vacuum bakes up to approximately 1700F. Auger analysis indicated components of the Inconel or SS had diffused completely through the coating at higher temperatures. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1973
- Accession Number
- AD0760577
Entities
People
- James W. Ramsey
- Ronald E. Peterson
Organizations
- Honeywell International, Inc.