Mechanical Properties of Carbon Nanotube Reinforced Composites: A Review

Bai, Qian; Hui, Mei; Ji, Tianming; Sun, Yuyao; Li, Haiqing; Cheng, Laifei

doi:10.1002/9781118932995.ch17

Cited by 2 publications

(1 citation statement)

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“…In the case of ''carbon reinforced metals'' (CRM) or ''metal matrix composites'' MMCs, the scenario shown by the literature [5][6][7] is not so wide as in the case of polymers. The number of papers is decidedly lower and the variety of systems studied and properties investigated are rather short.…”

Section: Introductionmentioning

confidence: 99%

High-temperature resistivity of aluminum–carbon nanotube composites

2015

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The resistivity and thermal coefficient of\ud resistivity (TCR), of metallic matrix composites, MMCs,\ud aluminum–carbon nanotube, Al-CNT, were studied under\ud high vacuum in the temperature interval from RT to 800 K.\ud The samples shaped as small cylinders and containing\ud single-walled CNTs or multi-walled CNTs were sintered at\ud 625 C. The resistivity of sintered samples of pure Al was\ud found three orders of magnitude higher with respect to\ud bulk, having the former a density value equal to 98.8 % of\ud bulk Al. The explored range of the CNT concentration was\ud within 5 wt%. At the highest CNT concentrations, the\ud trend of resistivity against temperature was found negative\ud being more pronounced for composites with MWCNTs.\ud For Al-SWCNT composites, at around 3.3 wt%\ud (4.2 vol%), TCR is practically independent from temperature;\ud for Al-MWCNT, the TCR zero-crossing occurs at\ud different compositions depending on temperature. Higher\ud is the temperature, lower is the TCR zero-crossing composition.\ud Resistivity data were discussed in the framework\ud of the Matthiessen’s rule and sound evidences were shown\ud that no Al4C3 formation was detected at working\ud temperatures

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Section: Introductionmentioning

confidence: 99%