TY - JOUR
T1 - Morphological characterization of fumed silica aggregates
AU - Boldridge, David
PY - 2010/3
Y1 - 2010/3
N2 - Transmission electron microscopy has been used to evaluate the primary particle size distributions and aggregate structure of a fumed silica sample. The primary particle size distribution within an individual aggregate is narrow, with a geometric standard deviation of ̃1.2. The distributions of maximum diameters, projected areas, and average primary particle diameters were all skewed, and all were better described by a log-normal distribution than a normal distribution. The data confirmed the fractal description of the fumed silica aggregate structure, with a mass fractal dimension of 1.86. The fractal prefactor or lacunarity was evaluated from the aggregate volume and the maximum particle dimension, and found to have a value of 0.83 for this sample.
AB - Transmission electron microscopy has been used to evaluate the primary particle size distributions and aggregate structure of a fumed silica sample. The primary particle size distribution within an individual aggregate is narrow, with a geometric standard deviation of ̃1.2. The distributions of maximum diameters, projected areas, and average primary particle diameters were all skewed, and all were better described by a log-normal distribution than a normal distribution. The data confirmed the fractal description of the fumed silica aggregate structure, with a mass fractal dimension of 1.86. The fractal prefactor or lacunarity was evaluated from the aggregate volume and the maximum particle dimension, and found to have a value of 0.83 for this sample.
UR - http://www.scopus.com/inward/record.url?scp=77949613894&partnerID=8YFLogxK
U2 - 10.1080/02786820903499462
DO - 10.1080/02786820903499462
M3 - Article
AN - SCOPUS:77949613894
SN - 0278-6826
VL - 44
SP - 182
EP - 186
JO - Aerosol Science and Technology
JF - Aerosol Science and Technology
IS - 3
ER -