In-situ synthesis of Si3N4TiN nanocomposite powders in cryogenic solution

Mei Yang, Mingli Lü, Komin Shu

研究成果: Conference article査読

抄録

A new method of Si3N4/TiN nanocomposite powders through reaction at low temperatures was proposed and tested. The reduction of titanium chloride and silicon chloride by sodium was conducted in liquid ammonia at the temperature range of -40°C- 50°C, and titanium nitride and silicon nitride nanopowders were obtained. Based on these reactions, in-situ coating and co-precipitation were conducted. The TiN nano-particles deposited on the surface of Si3N4 particles as the nuclei in the in-situ coating and in the co-precipitation two or more source of ions were reduced uniformly in the liquid ammonia. Si3N4TiN nanocomposite powders were prepared by both the routes and were characterized with X-ray diffraction, transmission electron microscopy. The effects of in-situ treatment and the particle size on the morphology of the composite were discussed.

本文言語English
ページ(範囲)269-274
ページ数6
ジャーナルMaterials Research Society Symposium Proceedings
1056
出版ステータスPublished - 2008 12 1
外部発表はい
イベントNanophase and Nanocomposite Materials V - Boston, MA, United States
継続期間: 2007 11 262007 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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