Gold, silver, chromium, and copper cermet selective surfaces for evacuated solar collectors
- 1 January 1979
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 34 (1), 25-28
- https://doi.org/10.1063/1.90585
Abstract
Cermet solar selective surfaces of absorptance over 0.90 and emittance less than 0.05 have been prepared by vacuum coevaporation of alumina and spinel with gold, silver, chromium, and copper. Grading of commposition was employed to enhance the absorptance. The effect of heat treatment in vacuum up to 500 °C was studied and the chromium‐alumina cermet shown to be the best candidate for vacuum‐insulated collectors.Keywords
This publication has 6 references indexed in Scilit:
- Optical properties of selectively absorbing Ni/Al2O3 composite filmsApplied Physics Letters, 1977
- Selective black absorbers using rf-sputtered Cr2O3/Cr cermet filmsApplied Physics Letters, 1977
- Applications of thin graded-index films to solar absorbersApplied Optics, 1977
- Selective black absorbers using MgO/Au cermet filmsApplied Physics Letters, 1976
- Sputtered metal carbide solar-selective absorbing surfacesJournal of Vacuum Science and Technology, 1976
- A device for the rapid measurement of total emittance.Journal of Spacecraft and Rockets, 1966