Synthesis of boron nitride nanotubes at low temperatures using reactive ball milling

被引：270
|
作者：
Chen, Y [1 ]
Fitz Gerald, JD
Williams, JS
Bulcock, S
机构：
[1] Australian Natl Univ, Res Sch Phys Sci & Engn, Dept Elect Mat & Engn, Canberra, ACT 0200, Australia
[2] Australian Natl Univ, Fac Engn & Informat Technol, Dept Engn, Canberra, ACT 0200, Australia
[3] Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 0200, Australia
[4] Univ Sydney, Coll Sci & Technol, Electron Microscopy Unit, Sydney, NSW 2006, Australia
来源：
CHEMICAL PHYSICS LETTERS | 1999年 / 299卷 / 3-4期
关键词：
D O I：
10.1016/S0009-2614(98)01252-4
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Boron nitride (BN) nanotubes have been produced by thermal annealing at 1000 degrees C of elemental boron powders which were previously ball milled in ammonia gas for 150 h at room temperature. High-energy ball milling induces nitriding reactions between the boron powder and the ammonia gas. A metastable material is formed consisting of disordered BN and nanocrystalline boron. BN nanotubes then grow out from this metastable and chemically activated structure during heat treatment in the presence of nitrogen gas. This novel process for forming BN nanotubes is distinctly different from are discharge and laser-heating processes. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：260 / 264
页数：5
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