Optical (low magnification) microscopy of the material at the different stages
Scale bar = 50mm.
Top. Flakes from the original latex crystal. The colors come from domains of ordered particles.
Middle. Flakes from latex-silica composite. Note the shift in colors.
Bottom. Flakes from baked silica. Although the structure could not be resolved at this low resolution, the porosity is visible.
© Copyright O. D. Velev 1998