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Findings from Massachusetts Institute of Technology Reveals New Findings on Boron (Ultrahigh interlayer friction in multiwalled boron nitride...

August 15, 2014



Findings from Massachusetts Institute of Technology Reveals New Findings on Boron (Ultrahigh interlayer friction in multiwalled boron nitride nanotubes)

By a News Reporter-Staff News Editor at Science Letter -- Fresh data on Boron are presented in a new report. According to news reporting originating from Cambridge, Massachusetts, by NewsRx correspondents, research stated, "Friction at the nanoscale has revealed a wealth of behaviours that depart strongly from the long-standing macroscopic laws of Amontons-Coulomb(1,2). Here, by using a 'Christmas cracker'-type of system in which a multiwalled nanotube is torn apart between a quartz-tuning-fork-based atomic force microscope (TF-AFM) and a nanomanipulator, we compare the mechanical response of multiwalled carbon nanotubes (CNTs) and multiwalled boron nitride nanotubes (BNNTs) during the fracture and telescopic sliding of the layers."

Our news editors obtained a quote from the research from the Massachusetts Institute of Technology, "We found that the interlayer friction for insulating BNNTs results in ultrahigh viscous-like dissipation that is proportional to the contact area, whereas for the semimetallic CNTs the sliding friction vanishes within experimental uncertainty. We ascribe this difference to the ionic character of the BN, which allows charge localization."

According to the news editors, the research concluded: "The interlayer viscous friction of BNNTs suggests that BNNT membranes could serve as extremely efficient shock-absorbing surfaces."

For more information on this research see: Ultrahigh interlayer friction in multiwalled boron nitride nanotubes. Nature Materials, 2014;13(7):688-693. Nature Materials can be contacted at: Nature Publishing Group, Macmillan Building, 4 Crinan St, London N1 9XW, England. (Nature Publishing Group - www.nature.com/; Nature Materials - www.nature.com/nmat/)

The news editors report that additional information may be obtained by contacting A. Nigues, MIT, Dept. of Civil & Environm Engn, CNRS, UMI 3466, Cambridge, MA 02139, United States. Additional authors for this research include A. Siria, P. Vincent, P. Poncharal and L. Bocquet (see also Boron).

Keywords for this news article include: Nanotube, Cambridge, Chemicals, Chemistry, Massachusetts, United States, Boron Nitride, Nanotechnology, Emerging Technologies, North and Central America

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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