Broadband Reflective Surfaces for Infrared Radiation
Abstract
Aerospace materials are exposed to high levels of radiation in extreme environments, which creates heating problems due to radiative thermal load. In this project, we designed surfaces and surface coatings to reduce and reflect IRradiation for aerospace applications. Issues of radiative thermal load on aerospace materials have become increasingly critical since heating of materials negatively impacts their performance. Novel material designs through computational models can reduce the radiative load through engineered reflection. To ensure robust operation, we designed surfaces that operate over a broad region of the infrared spectrum as commonly encountered in aerospace applications. There is already an established literature for other applications on engineering the reflection spectrum. In this project, we extended and modified these established models and theories to reduce and reflect IR radiation for aerospace applications. In this project, we evaluated two alternative design variations. First, we obtained a reflective surface based on a thin-film surface filter, which is composed of several layers. In this design, the desired reflective and spectral properties were achieved through constructive and destructive interference of the reflected fields from each layer. Second, we obtained reflective surfaces based on patterned surfaces.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 23, 2021
- Accession Number
- AD1137274
Entities
People
- Kursat Sendur
Organizations
- Sabancı University