ISSN:
1662-0356
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Natural Sciences in General
,
Technology
Notes:
Carbon nanotubes (CNTs) are of great technical interest because of their high strength(~37 GPa), good electrical conductivity, excellent thermal conductivity (3 000 W m-1K-1), and goodthermal stability at both low and high temperatures. A difficulty has been absence of reliablemethods of controlling assembly of the large numbers of CNTs required for practical applications.We have developed, in collaboration with our partners at the NanoTech Institute, University ofTexas at Dallas, a solid-state process for spinning CNTs into yarns without the use of binders thatusually degrade the electrical and thermal conductivities. The singles yarns were twisted together togive coarser (multi-stranded) stronger yarns that were knitted using a miniature 5-needle machine.Mechanical and electrical properties of the yarns and knitted tubes were assessed simultaneouslyusing specially developed test equipment. Some specific applications under investigation includeusing the CNT yarns as incandescent and x-ray filaments, as electrodes for biomedical applications,and as composites with high toughness. Tests show the biocompatibility of the CNT yarns forselected cell lines is high
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/42/transtech_doi~10.4028%252Fwww.scientific.net%252FAST.60.11.pdf
