Nanowires of AlN and Si3N4 prepared from amorphous powders

Zhao Han, Mingli Lü, Mei Yang, Hongmin Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Aluminum nitride and silicon nitride nano-powders were synthesized through a chemical reduction, of AlCl3 and SiCl4 by sodium in liquid ammonia. The product powders were amorphous and spherical agglutinating particles ranging from 1 to 10 nanometers in diameter. Single-crystalline aluminum nitride (AlN) and silicon nitride (Si3N4) nanowires with hexagonal structure were prepared by heating the amorphous nano-powders at 1300°C through 1450°C. The products obtained were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). The results revealed that the products were single-crystalline AlN and Si3N4 nanowires. The diameters of the nanowires ranged from 30 to 200 nm, and the lengths were from several micrometers to several decades of micrometers.

Original languageEnglish
Title of host publicationTMS2008 - 137th Annual Meeting and Exhibition Supplemental Proceedings
Subtitle of host publicationMaterials Processing and Properties
Pages19-24
Number of pages6
Publication statusPublished - 2008 Oct 20
Externally publishedYes
EventTMS 2008 Annual Meeting Supplemental: Materials Processing and Properties - New Orleans, LA, United States
Duration: 2008 Mar 92008 Mar 13

Publication series

NameTMS Annual Meeting
Volume1

Other

OtherTMS 2008 Annual Meeting Supplemental: Materials Processing and Properties
CountryUnited States
CityNew Orleans, LA
Period08/3/908/3/13

Keywords

  • Aluminum nitride
  • Nanowire
  • Silicon nitride

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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