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Physics > Applied Physics

Title: Titanium diboride ceramics for solar thermal absorbers

Abstract: Titanium diboride (TiB2) is a low-density refractory material belonging to the family of ultra-high temperature ceramics (UHTCs). This paper reports on the production and microstructural and optical characterization of nearly fully dense TiB2, with particular interest to its potential utilization as novel thermal solar absorber. Monolithic bulk samples are produced starting from elemental reactants by a two-step method consisting of the Self-propagating High-temperature Synthesis (SHS) followed by the Spark Plasma Sintering (SPS) of the resulting powders. The surface of obtained samples has-been characterized from the microstructural and topological points of view. The hemispherical reflectance spectrum has been measured from 0.3 to 15 um wavelength, to evaluate the potential of this material as solar absorber for future concentrating solar plants.
Subjects: Applied Physics (physics.app-ph); Materials Science (cond-mat.mtrl-sci)
Journal reference: Solar Energy Materials and Solar Cells, Volume 169 (2017) Pages 313-319
DOI: 10.1016/j.solmat.2017.05.038
Cite as: arXiv:1803.06526 [physics.app-ph]
  (or arXiv:1803.06526v1 [physics.app-ph] for this version)

Submission history

From: Elisa Sani [view email]
[v1] Sat, 17 Mar 2018 15:54:21 GMT (778kb)