File(s) not publicly available

Influence of nitriding gases on the growth of boron nitride nanotubes

journal contribution
posted on 01.06.2007, 00:00 authored by J Yu, B Li, J Zou, Ying (Ian) ChenYing (Ian) Chen
Boron nitride (BN) nanotubes of different sizes and tubular structures exhibit very different mechanical and chemical properties, as well as different applications. BN nanotubes of different sizes and nanostructures have been produced in different nitriding gases in a milling and annealing process, in which elemental boron powder was first milled in NH3 for 150 h and subsequently annealed at 1,200 °C for 6 h. The influence of nitriding gases was investigated by using N2, NH3, N2–H2 mixture gases. A relatively slow nitriding reaction in NH3 gas leaded to a 2D growth of BN (002) basal planes and the formation of thin BN nanotubes without the help of metal catalysts. Fast nitriding reactions occurred in N2 or N2–H2 mixture gases, catalyzed by metal particles, resulted in 3D crystal growth and the formation of many large cylindrical and bamboo tubes.

History

Journal

Journal of materials science

Volume

42

Issue

11

Pagination

4025 - 4030

Publisher

Springer Netherlands

Location

Amsterdam, The Netherlands

ISSN

0022-2461

eISSN

1573-4803

Language

eng

Notes

Published online: 31 January 2007

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2007, Springer Science+Business Media