Affiliation:
1. School of Materials Engineering Purdue University West Lafayette Indiana USA
Abstract
AbstractEmissivity as a function of wavelength, direction, and temperature correlates to a material's efficiency in radiating thermal energy. Knowledge of emissivity is essential for designing and developing radiation‐cooled thermal protective systems for hypersonic applications. It is desirable to achieve a high emissivity (with a value close to 1) to maximize heat radiation from a hot surface of a hypersonic vehicle's leading edge during atmospheric re‐entry. With the goal of providing the hypersonic materials community with this necessary knowledge, this article offers a basic understanding of thermal radiation, methods for measuring emissivity at high temperatures, and a comprehensive overview of the emissivity of ultra‐high temperature ceramics.
Subject
Electronic, Optical and Magnetic Materials,Ceramics and Composites,Biomaterials,Materials Science (miscellaneous)
Cited by
3 articles.
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