Iranian Journal of Materials Science and Engineering
Iran University of Science & Technology
Fri, Nov 15, 2024
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Volume 8, Issue 2 (spring 2011 2011)
IJMSE 2011, 8(2): 48-56 |
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B. Akbari, M. Pirhadi Tavandashti, M. Zandrahimi. PARTICLE SIZE CHARACTERIZATION OF NANOPARTICLES – A PRACTICALAPPROACH. IJMSE 2011; 8 (2) :48-56
URL: http://ijmse.iust.ac.ir/article-1-341-en.html
URL: http://ijmse.iust.ac.ir/article-1-341-en.html
Abstract: (42373 Views)
Abstract: Most properties of nanoparticles are size-dependent. In fact, the novel properties of nanoaprticles do not prevail until the size has been reduced to the nanometer scale. The particle size and size distribution of alumina nanoparticle, as a critical properties, have been determined by transmission electron microscopy (TEM), photon correlation spectroscopy (PCS), surface area analysis (BET) and x-ray diffraction peak broadening analysis. The particle size was found to be in the range of 5-95nm. Cumulative percentage frequency plot of the data extracted form TEM images indicates that particle size distribution obeys the log-normal function. The TEM images also reveal that particles are spherical in shape and loosely agglomerated. Comparing of the XRD and TEM results shows that the particles are single-crystal. The HRTEM images also verify that the particles have a single-crystal nature. In comparison, there is a good correlation between the BET, XRD and TEM measurements other than PCS that is sensitive to the presence of the agglomerates.
Type of Study: Research Paper |
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