Elastic and inelastic properties of SiC/Si biomorphic composites and biomorphic SiC based on oak and eucalyptus

Kardashev, B. K.; Nefagin, A. S.; Смирнов, Б. И.; Arellano‐López, A.R. de; Martı́nez-Fernández, J.; Sepúlveda, R.

doi:10.1134/s1063783406090150

Cited by 1 publication

(1 citation statement)

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“…Ultrahigh thermal conductivity enabled by biomorphic SiC foams. Biomorphic SiC foams used in this study are fabricated by reactive infiltration of molten silicon into carbonized wood [53][54][55][56][57] . Briefly, the wood is first dried for 2~3 days (Fig.…”

Section: Resultsmentioning

confidence: 99%

Bifunctional biomorphic SiC ceramics embedded molten salts for ultrafast thermal and solar energy storage

Liu

Luo

et al. 2021

Materials Today Energy

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Phase change materials (PCMs) are regarded as one of the most promising candidates for thermal energy storage due to possessing large energy storage densities and maintaining nearly a constant temperature during charging/discharging processes. However, the intrinsically low thermal conductivity of PCMs has become a bottleneck for rapid energy transport and storage. Here, we present a strategy to achieve ultrafast solar and thermal energy storage based on biomorphic SiC skeletons embedded NaCl-KCl molten salts. A record-high thermal conductivity of 116 W/mK is achieved by replicating cellular structure of oak wood, leading to an ultrafast thermal energy storage rate compared with molten salts alone. By further decorating TiN nanoparticles on SiC skeletons, the solar absorptance is enhanced to be as high as 95.63 % via exciting broadband plasmonic resonances. Excellent thermal transport and solar absorption properties enable designed composites to have bifunctional capabilities of harvesting both thermal energy and solar energy very rapidly. This work opens a new route for the design of bifunctional energy storage materials for ultrafast solar and thermal energy storage.

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