Abstract
Boron nitride (BN) nanotubes have been produced from elemental boron powder using a new low-temperature process, which involves ball milling of boron powder in ammonia gas at room temperature, and followed by annealing at temperatures up to 1300°C in nitrogen gas. Ball milling induces nitriding reactions between the boron powder and the ammonia gas with the formation of a disordered BN phase. BN nanotubes then grow out during the subsequent heat treatment. This novel process for forming BN nanotubes is distinctly different from arc discharge and laser-heating processes.
Original language | English |
---|---|
Pages (from-to) | 173-178 |
Number of pages | 6 |
Journal | Materials Science Forum |
Volume | 312 |
DOIs | |
Publication status | Published - 1999 |
Event | Proceedings of the 1998 International Symposium on Metastable, Mechanical Alloyed and Nanocrystalline Materials, ISMANAM-98 - Wollongong, Sydney, Aust Duration: 7 Dec 1998 → 12 Dec 1998 |