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High-performance thermal emitters based on laser-engineered metal surfaces
- Source :
- Optical Materials Express. 10:622
- Publication Year :
- 2020
- Publisher :
- Optica Publishing Group, 2020.
-
Abstract
- Effective thermal management is of paramount importance for all high-temperature systems operating under vacuum. Cooling of such systems relies mainly on radiative heat transfer requiring high spectral emissivity of surfaces, which is strongly affected by the surface condition. Pulsed laser structuring of stainless steel in air resulted in the spectral hemispherical emissivity values exceeding 0.95 in the 2.5–15 µm spectral region. The effects of surface oxidation and topography on spectral emissivity as well as high temperature stability of the surface structures were examined. High performance stability of the laser textured surfaces was confirmed after thermal aging studies at 320°C for 96 hours.
- Subjects :
- Materials science
business.industry
Thermal aging
02 engineering and technology
Thermal management of electronic devices and systems
021001 nanoscience & nanotechnology
Laser
01 natural sciences
Electronic, Optical and Magnetic Materials
law.invention
010309 optics
Metal
law
Thermal radiation
visual_art
0103 physical sciences
Thermal
Emissivity
visual_art.visual_art_medium
Optoelectronics
Surface oxidation
0210 nano-technology
business
Subjects
Details
- ISSN :
- 21593930
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Optical Materials Express
- Accession number :
- edsair.doi...........59d5a7205c1bdcbaa523d55f05866b27
- Full Text :
- https://doi.org/10.1364/ome.381668