  We present Monte Carlo (MC) simulation studies of phase separation in binary
(AB) mixtures with bond-disorder that is introduced in two different ways: (i)
at randomly selected lattice sites and (ii) at regularly selected sites. The
Ising model with spin exchange (Kawasaki) dynamics represents the segregation
kinetics in conserved binary mixtures. We find that the dynamical scaling
changes significantly by varying the number of disordered sites in the case
where bond-disorder is introduced at the randomly selected sites. On the other
hand, when we introduce the bond-disorder in a regular fashion, the system
follows the dynamical scaling for the modest number of disordered sites. For
higher number of disordered sites, the evolution morphology illustrates a
lamellar pattern formation. Our MC results are consistent with the
Lifshitz-Slyozov (LS) power-law growth in all the cases.
