Preferred Label : agranular carbon;
IUPAC definition : A monogranular or monolithic carbon material with homogeneous microstructure which
does not exhibit any structural components distinguishable by optical microscopy.;
Scope note : the above definition of a homogeneous microstructure does not pertain to pores and
structural components which may be visible by contrast differences in optical microscopy
with polarized light. as a consequence, glass?like carbon with visible pores is still
an agranular carbon. the same is true, for instance, for pyrolytic carbon with preferred
orientation, such as conical or lamellar structures, visible in optical microscopy
with polarized light. use of the term agranular carbon is not restricted to bulk materials
of a minimum size. only particulate carbon should be excluded even if the isolated
particles exhibit a homogeneous microstructure.;
Origin ID : A00188;
See also
A monogranular or monolithic carbon material with homogeneous microstructure which
does not exhibit any structural components distinguishable by optical microscopy.
