Characterization of solar-aged porous silicon carbide for concentrated solar power receivers

Inmaculada Cañadas, Victor M. Candelario, Giulia De Aloysio, Jesús Fernández, Luca Laghi, Santiago Cuesta-López, Yang Chen, T. James Marrow, Antonio Rinaldi, Ana Mariblanca Sanchez, Angelo Tatì, Claudio Testani

Research output: Contribution to journalArticlepeer-review

9 Citations (SciVal)

Abstract

Porous silicon carbide is a promising material for ceramic receivers in next-generation concentrated solar power receivers. To investigate its tolerance to thermal shock, accelerated ageing of large coupons (50 × 50 × 5 mm) was conducted in a solar furnace to investigate the effects of thermal cycling up to 1000 °C, with gradients of up to 22 °C/mm. Non-destructive characterization by computed X-ray tomography and ultrasonic inspection could detect cracking from thermal stresses, and this informed the preparation of valid specimens for thermophysical characterization. The effect of thermal ageing on transient thermal properties, as a function of temperature, was investigated by using the light-flash method. The thermophysical properties were affected by increasing the severity of the ageing conditions; thermal diffusivity decreased by up to 10% and specific heat by up to 5%.

Original languageEnglish
Article number4627
JournalMaterials
Volume14
Issue number16
DOIs
Publication statusPublished - 17 Aug 2021

Bibliographical note

Funding Information:
This project has received funding from the European Union?s Horizon 2020 Research and Innovation Programme, under grant agreement no. 721045. The Xradia 510 microscope was funded by University of Oxford experimental equipment grant from the UK Engineering and Physical Sciences Research Council (EPSRC) (EP/M020833X/1).

Keywords

  • Accelerated ageing
  • Computed tomography
  • Concentrated solar power plants
  • Non-destructive testing
  • Silicon carbide
  • Thermal conductivity
  • Thermal diffusivity
  • Ultrasonic

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Characterization of solar-aged porous silicon carbide for concentrated solar power receivers'. Together they form a unique fingerprint.

Cite this