By a News Reporter-Staff News Editor at Science Letter -- A new study on Fullerenes is now available. According to news reporting from Cambridge, United Kingdom, by NewsRx journalists, research stated, "We developed carbon nanotube wires (CNWs) and monitored in situ their electrical properties at high temperature conditions for the first time. The dominant type of CNTs present in the material and packing density of thereof proved to have a dominant effect on the thermal stability of CNWs."
The news correspondents obtained a quote from the research from the University of Cambridge, "Furthermore, we showed that kinetics of CNW oxidation plays an important role and slow heating rates or prolonged heating times are essential for the proper determination of thermal stability of CNTs. To enhance the stability at high temperatures, we applied SiC coating onto the CNWs, what allowed a 300 degrees C improvement to the operational window, eventually reaching 700 degrees C in the long-haul. Correlation of the change in electrical properties with thermogravimetric response showed that the loss of electrical percolation takes place at 100 degrees C lower temperature than the last observed weight loss in CNTs content. Finally, we demonstrated feasibility of SiC-coated CNWs under high temperature conditions, by creating a heating device out of them."
According to the news reporters, the research concluded: "The presence of SiC layer gave rise to a significant improvement to the thermal stability of the CNT heaters, which now offer unprecedented range of operation reaching 700 degrees C, as compared to 400 degrees C when uncoated."
For more information on this research see: Carbon nanotube wires for high-temperature performance. Carbon, 2013;64():305-314. Carbon can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Carbon - www.elsevier.com/wps/product/cws_home/258)
Our news journalists report that additional information may be obtained by contacting D. Janas, University of Cambridge, Dept. of Mat Sci & Met, Cambridge CB2 3QZ, United Kingdom. Additional authors for this research include A. Cabrero-Vilatela, J. Bulmer, L. Kurzepa and K.K. Koziol (see also Fullerenes).
Keywords for this news article include: Europe, Cambridge, Fullerenes, United Kingdom, Carbon Nanotubes
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