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http://dx.doi.org/10.4150/KPMI.2007.14.6.391

Determination of Fractal Dimension and Surface Characterization of Metal Nano-powder Using Nitrogen Gas Adsorption Method  

Lee, Gyoung-Ja (Nuclear Nanomaterials Development Lab,. Korea Atomic Energy Research Institute (KAERI))
Uhm, Young-Rang (Nuclear Nanomaterials Development Lab,. Korea Atomic Energy Research Institute (KAERI))
Rhee, Chang-Kyu (Nuclear Nanomaterials Development Lab,. Korea Atomic Energy Research Institute (KAERI))
Publication Information
Journal of Powder Materials / v.14, no.6, 2007 , pp. 391-398 More about this Journal
Abstract
The surface roughness of Al, Ag and Ni nano-powders which were prepared by pulsed wire evaporation method was quantified based upon the fractal theory. The surface fractal dimensions of metal nano-powders were determined from the linear relationship between In $V/V_{mono}$ and Inln ($P^o/P$) using multi-layer gas adsorption theory. Moreover, the fractal surface image was realized by computer simulation. The relationship between preparation condition and surface characteristics of metal nano-powders was discussed in detail.
Keywords
Nano-powder; Pulsed wire evaporation; Fractal; Multilayer gas adsorption theory;
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