Suitability of layered Ti3SiC2 and Zr3[Al(si)]4C6 ceramics as high temperature solar absorbers for solar energy applications

Zhenggang Fang, Chunhua Lu, Chaopeng Guo, Yi Lu, Dongshan Gao, Yaru Ni, Jiahui Kou, Zhongzi Xu, Peiwen Li

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Layered Ti3SiC2 and Zr3[Al(Si)]4C6 ceramics were prepared by hot-pressed sintering. The spectrally selective absorption properties of these layered carbides have been investigated and compared with those of TiC and ZrC. It is found that the Ti3SiC2 ceramic exhibits a solar absorbance of 0.70 and a thermal emissivity of 0.19, yielding spectral selectivity (absorbance divide by emissivity) of 3.7, while the spectral selectivity of Zr3[Al(Si)]4C6 is 2.8 (0.71/0.25). To evaluate the suitability of these ceramics as high-temperature absorbers for solar radiation, the investigation on the thermal stability and temperature dependent emittance was performed in air. Compared with TiC and ZrC, both Ti3SiC2 and Zr3[Al(Si)]4C6 show better thermal stability. Meanwhile, Ti3SiC2 and Zr3[Al(Si)]4C6 exhibit a low emissivity in the investigated temperature range, benefiting from their metal-like electrical conductivity.

Original languageEnglish (US)
Pages (from-to)252-260
Number of pages9
JournalSolar Energy Materials and Solar Cells
Volume134
Issue number1
DOIs
StatePublished - 2015

Keywords

  • Optical properties
  • Solar absorbers
  • Spectral selectivity
  • TiSiC
  • Zr[Al(Si)]C

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

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