Formation mechanism of electrically conductive nanoparticles by induction thermal plasmas

Takayuki Watanabe, Atsushi Nezu, Yoshiyuki Abe, Yoshiro Ishii, Kenji Adachi

Research output: Contribution to journalConference articlepeer-review

30 Citations (Scopus)

Abstract

The purpose of this paper is to prepare electrically conductive nanoparticles such as borides, mixture of nitrides and borides by induction thermal plasmas. Another purpose is to correlate the prepared particle composition with thermodynamic parameters. For B-N-M (M=Ti, Cr, V) system that has low Gibbs free energy of nitridation and boridation, boride and nitride nanoparticles were prepared. While B-N-M (M=Co, Fe, Mo) system that has high Gibbs free energy of nitridation, boride nanoparticles were mainly prepared. For B-N-M (M=Ta, Nb) system that has much higher nucleation temperature of metal than that of boron, nanoparticles of nitride with small fraction of boride were prepared, because these systems have different nucleation mechanism. The composition of prepared nanoparticles depends on the Gibbs free energy as well as the nucleation temperature.

Original languageEnglish
Pages (from-to)27-32
Number of pages6
JournalThin Solid Films
Volume435
Issue number1-2
DOIs
Publication statusPublished - Jul 1 2003
Externally publishedYes
EventProccedings of the Joint International Plasma Symposium - Jeju Island, Korea, Republic of
Duration: Jul 1 2002Jul 4 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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