Two-Directional Nodal Model for Co-Condensation Growth of Multicomponent Nanoparticles in Thermal Plasma Processing

  • Masaya Shigeta
  • Takayuki Watanabe
Peer Reviewed


A more precise but easy-to-use model is developed and proposed to clarify nanoparticle growth with two-component co-condensation in thermal plasma processing. Computations performed for the molybdenum-silicon and titanium-silicon systems demonstrate that the model quantitatively estimates both the particle size distribution and the composition distribution of the silicide nanoparticles produced through co-condensation as well as nucleation and coagulation. The model also successfully obtains information that cannot be acquired by any other models. As a consequence, the detailed growth mechanisms of the silicide nanoparticles are eventually revealed. The present model is thus an “adaptable” and useful tool for analyzing nanoparticle growth processes, including co-condensation, with sufficient accuracy.


modeling nanoparticle numerical simulation silicide thermal plasma 



This work was supported by the Japan Society for the Promotion of Science, Grant-in-Aid for Young Scientists (B) (20760106).


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Copyright information

© ASM International 2009

Authors and Affiliations

  1. 1.Department of Mechanical Systems and Design, Graduate School of EngineeringTohoku UniversitySendaiJapan
  2. 2.Department of Environmental Chemistry and Engineering, Interdisciplinary Graduate School of Science and EngineeringTokyo Institute of TechnologyYokohamaJapan

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