WILLIAMS, A.M. and GARNER, C.P., 2008. Measuring pore diameter distribution of gelcast ceramic foams from two-dimensional cross sections. Journal of the American Ceramic Society, 91 (9), pp. 3113–3116.
Increasing applications for gelcast ceramic foams is making the
effective, accurate and cost effective measurement of pore diameter
and distribution of significant value to a wide range of
research fields. Current methods either do not directly measure
pore diameter or they require high equipment and time costs.
Measuring pore diameter directly from sample cross sections is
both rapid and cost effective but, due to the random nature of the
pore location during sectioning of the sample, it under predicts
the pore diameter. The proposed method identified that the mean
measured pore diameter was 79% (2 s.f.) of the actual pore diameter.
Numerical methods for correcting the pore distribution
as well as the average pore diameter are presented.