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- W4387175540 abstract "Cork is a renewable and sustainable material, highly porous and lightweight. We valorised waste cork and recycled wine stoppers to make pyrolysed/carbonised solid cork, for use as economic and sustainable microwave (MW) absorbers at the microwave X-band (8-12 GHz), without binder or additives. Although cork is already a very lightweight material (0.16 g cm-3), the pyrolysed cork is five-times less dense at 0.031 g cm-3, was amorphous graphitic carbon, and had an excellent shielding effectiveness (SET) of -18 to -38 dB, depending on thickness, with attenuation of the electromagnetic energy through internal reflection within the cellular cork structure. Furthermore, this ultra-light-weight material has an extremely high MW specific shielding effectiveness or efficiency (SSE), between -640 to -1235 dB g-1 cm3 over the entire X-band range, depending on thickness (3.0-8.6 mm), one of the highest reported for any pure carbon material, this upper value being more than twice that of any previously reported graphite-based foams." @default.
- W4387175540 created "2023-09-30" @default.
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- W4387175540 date "2023-01-01" @default.
- W4387175540 modified "2023-10-17" @default.
- W4387175540 title "Ultra-light-weight microwave X-band EMI shielding or RAM material made from sustainable pyrolysed cork templates" @default.
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- W4387175540 doi "https://doi.org/10.1039/d3nr04411d" @default.
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- W4387175540 hasPublicationYear "2023" @default.
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