Shaped, fabricated, intractable article with a homogeneous microstructure which does not exhibit any structural components distinguishable by optical microscopy.
The article is usually fabricated by cold pressing or hot pressing of a @M03667@ material, or by using a reactive processing technique such as @RT07628@, @CT07136@, @S05727@-@G02600@ processing, @S05704@, etc.
PAC, 2007, 79, 1801. 'Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007)' on page 1812 (