Spark plasma sintering of double-walled carbon nanotubes |
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Authors: | Christophe Laurent Geoffroy Chevallier Alicia Weibel Alain Peigney Claude Estournès |
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Affiliation: | CIRIMAT, UMR CNRS-UPS-INP 5085, Bât. 2R1, Université Paul-Sabatier, 31062 Toulouse cedex 9, France |
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Abstract: | Bulk samples of double-walled carbon nanotubes are prepared for the first time. The best spark plasma sintering conditions are (1100 °C, 100 MPa). Raman spectroscopy and scanning electron microscopy show that the nanotubes are undamaged. The density is equal to 1.29 g cm−3 and the pores are all below 6 nm in diameter. The electrical conductivity is equal to 1650 S cm−1. The transverse fracture strength is equal to 47 MPa. |
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