Solar absorbent, dense, and self-healing ZrB2-SiC anti-oxidative multilayer coating for Carbon/Carbon composites

Jose C. Cordeiro, Matthew Zuzelski, Jadyn Hart, Todd P. Otanicar, Michael W. Keller, Hema Ramsurn

Research output: Contribution to journalArticlepeer-review

Abstract

Due to their high tensile strength, high heat conductivity, and low coefficient of thermal expansion, carbon/carbon composites have been proposed as a material of construction for concentrated solar power (CSP) receivers. A combination of reactive pack cementation, chemical vapor deposition, and slurry coating was used to produce a dense, self-healing, and solar absorbent ZrB2-SiC multilayer protective coating that is effective at moderate to high temperatures (750-850 °C) at which CSP receivers are expected to operate. Oxidation in air at 850 °C for 150 h showed virtually no weight loss with a final solar weighted absorptance of 0.881.

Original languageEnglish
Article number113148
JournalSolar Energy
Volume286
DOIs
StatePublished - 15 Jan 2025

Keywords

  • Ceramic matrix composites
  • Oxidation
  • Oxide coatings
  • Thermal cycling

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