Record number :
Title of article :
Particle size distribution analysis for nano-SiO2 powder by ultra-small angle X-ray scattering (USAXS) using synchrotron radiation
Author/Authors :
Hisayuki Hashimoto، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
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Abstract :
Ultra-small angle X-ray scattering (USAXS) experiments were conducted with the BL15XU beamline (SPring-8) to perform a particle size distribution analysis of nano-powder, i.e. aggregations of particles with dimensions on the order of nanometers. The samples measured were amorphous nano-SiO2 powders of varying specific surface areas. Since a highly collimated and high-intensity X-ray beam is available, it is possible to obtain USAXS spectra that are only slightly affected by background noise. The USAXS spectra obtained from nano-SiO2 powders were analyzed by a modified Fankuchen technique, a method for particle size distribution analysis adapted by the authors. Using this technique, particle size distribution measurements can be performed over a wide range of particle diameters from 1 to 200 nm. Since this method enables the particle size distribution of nano-powder to be accurately and easily determined, it is expected to be useful in a wide variety of fields.
Keywords :
Nano-powder , Ultra-small angle X-ray scattering (USAXS) , Modified Fankuchen technique , SPring-8 , Particle size distribution , Synchrotron radiation
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
Link To Document :