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Large-quantity production of high-yield boron nitride nanotubes

Published online by Cambridge University Press:  31 January 2011

Y. Chen ,
M. Conway ,
J. S. Williams  and
J. Zou
Y. Chen
Affiliation:
Department of Electronic Materials Engineering, Research School of Physical Sciences and Engineering, The Australian National University, Canberra, ACT 0200, Australia
M. Conway
Affiliation:
Department of Electronic Materials Engineering, Research School of Physical Sciences and Engineering, The Australian National University, Canberra, ACT 0200, Australia
J. S. Williams
Affiliation:
Department of Electronic Materials Engineering, Research School of Physical Sciences and Engineering, The Australian National University, Canberra, ACT 0200, Australia
J. Zou
Affiliation:
Electron Microscopy Unit, College of Sciences and Technology, The University of Sydney, NSW 2006, Australia
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Abstract

A high quantity and yield (up to 85%) of boron nitride (BN) nanotubes have been produced using a mechanothermal method. Elemental boron powders were first mechanically milled at room temperature in NH3 atmosphere and subsequently heated in N2 gas at 1200 °C for up to 16 h. The BN nanotubes obtained have either multiwalled cylindrical or bamboolike structures, suggesting different growth processes. The high formation yield of BN nanotubes is due to a high density of nanostructured nuclei created by an extensive milling treatment.

Information

Type
Rapid Communications
Information
Journal of Materials Research , Volume 17 , Issue 8 , August 2002 , pp. 1896 - 1899
Copyright
Copyright © Materials Research Society 2002

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