In this Rapid Research Note the application of recently introduced [Physica A
277 (2000) 157] entropic measure S_Delta of spatial disorder for systems of
finite-sized objects is presented. In the thermodynamic limit the critical
behaviour of coarsened lattice model of random two-phase systems is illustrated
for certain grain size distributions (GSDs) and chosen parameters. Also the
changes of spatial disorder, quantified by S_Delta, between the limit GSDs
clearly show that the topological equivalence of the two phases is broken.Comment: 3 pages, 1 figur
