Preparation of nanometer AlN powders by combining spray pyrolysis with carbothermal reduction and nitridation

Sang Ho Lee, Jang Heui Yi, Jung Hyun Kim, You Na Ko, Young Jun Hong, Yun Chan Kang

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Nanometer AlN powders were prepared by combining spray pyrolysis with carbothermal reduction and nitridation (CRN). The aluminum oxide/carbon composite powders prepared by spray pyrolysis from a sucrose spray solution were several microns in size, with hollow and porous structures. Precursor powder with 67 wt% carbon content was transformed into phase-pure AlN powder by CRN at temperatures above 1,400 °C. The hollow-structured AlN powder was ground to 20 nm mean size by simple milling.

Original languageEnglish
Pages (from-to)1967-1971
Number of pages5
JournalCeramics International
Volume37
Issue number6
DOIs
Publication statusPublished - 2011 Aug 1
Externally publishedYes

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Keywords

  • A. Powders-chemical preparation
  • A. Powders-gas phase reaction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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