Normally, Researchers use SEM or TEM image to get the details about the distributions of the filler in the matrix of a composite. Is there any other method to identify the distribution and dispersion of filler in the matrix.
Depending on the filler material, composite itself, sample size 3D X-ray tomography can be a choice. It can be used to do virtual x-section and image processing software can be utilized to quantify the filler distribution. Again, it will depend on the material properties.
Hope it helps.
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If you have thin enough sections you may see something on optical miscroscopy as well, or in reflection mode on polished sections. But the resolution is much worse than with SEM.
Serially section the specimen, then use a hydrometer balance to measure the density of each section.
If you don't have access to such a balance, make a hook, attached to a stand and follow the instruction attached herewith.
XRD is an indirect tool to evaluate the inter-layer spacing between particles. The structure of nanocomposites can be recognized as either intercalated or exfoliated from the relative position, shape, and the intensity of the basal reflection. In order to detect the (001) reflection and determine the d-spacing between the particles. As the depth of penetration of X-rays is inversely proportional to the diffraction angle theta, a thin specimen with a large surface area is recommended.
Here, I'm talking about the epoxy/clay nanocomposites.
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