Ultra-High Temperature Ceramics for solar receivers: spectral and high-temperature emittance characterization

E. Sani; L. Mercatelli; D. Jafrancesco; J. L. Sans; D. Sciti

doi:10.2971/jeos.2012.12052

Journal of the European Optical Society - Rapid publications, Vol 7 (2012)

Ultra-High Temperature Ceramics for solar receivers: spectral and high-temperature emittance characterization

E. Sani, L. Mercatelli, D. Jafrancesco, J. L. Sans, D. Sciti

Abstract

We report on the preparation, room temperature spectral reflectance and high-temperature thermal emittance characterization of different boride and carbide Ultra-High Temperature Ceramics (UHTCs). The investigated samples are compared with a reference material for solar absorber applications, i.e. silicon carbide. We show that spectral and thermal emittance properties of UHTCs are promising for novel solar receivers.

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