Synthesis and sintering of aluminium nitride nano-particles

Zhao Han, Mei Yang, Hongmin Zhu

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Aluminum nitride (AlN) nano-particles were synthesized from aluminum chloride by sodium reduction in liquid ammonia. A liquid solution of sodium dissolved in ammonia was employed as a reduction-nitridation agent, which enabled direct nitridation of aluminum chloride at -45°C The synthesized particles were heat-treated at 1000°C in vacuum, and were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and BET surface area measurement. The results indicated that the products were hexagonal wurtzite AlN particles, with a specific surface area of 262 m2g-1. Spark plasma sintering (SPS) process was used to consolidate the as-prepared AlN nanoparticles, and dense AlN ceramic (>98.5%) with average grain size of 200-400 nm was obtained at 1600°C without the use of sintering additives.

本文言語English
ホスト出版物のタイトルNitrides and Related Bulk Materials
ページ134-139
ページ数6
出版ステータスPublished - 2008
外部発表はい
イベント2007 MRS Fall Meeting - Boston, MA, United States
継続期間: 2007 11月 262007 11月 30

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1040
ISSN(印刷版)0272-9172

Other

Other2007 MRS Fall Meeting
国/地域United States
CityBoston, MA
Period07/11/2607/11/30

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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