Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1979-11-15
1982-01-26
Hess, Bruce H.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
126417, 350 11, 350 16, 350 17, 427160, 4273763, 428328, 428333, 428469, 428472, 428913, B32B 516, B32B 1504, F24J 302
Patent
active
043129153
ABSTRACT:
A selective-black absorber capable of operation at elevated temperatures and high efficiency as a solar energy absorber is described. A cermet of MgO/Au, MgO/Pt, and Cr.sub.2 O.sub.3 /Cr having high solar energy absorptance and low infrared energy emissivity is coated on a substrate having high infrared reflectivity such as Mo coated on stainless steel; Ni coated on Cu, or steel; aluminum, or steel. Typically an absorption coefficient of about 0.93 with an emissivity of about 0.09 is obtained and operation at a temperature of 300.degree.-400.degree. C. is possible depending on the cermet and substrate materials.
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Henrich et al., "High-Efficiency Secondary-Electron Emission from Sputtered MgO-Au Cermets", App. Phys. Let. 23,7 (1973).
Henrich et al., "Effects of Cesiation on Secondary-Electron Emission from MgO/Au Cermets", J. Appl. Phys., 45, 3742 (1974).
Henrich et al., "Differential Sputtering of MgO/Au Cermet Films and its Application to High-Yield Secondary-Electron Emitter", Surface Science, 42 (1974), pp. 139-156.
Hess Bruce H.
Massachusetts Institute of Technology
Santa Martin M.
Smith, Jr. Arthur A.
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