The formation of equilibrium spectrum of particles in a disperse system wit
h the coagulation-fragmentation of aggregates at a steady-state shear flow
was analyzed in terms of two-fraction model. It was suggested that an initi
al dispersed phase contains only small particles coagulating by the Brownia
n mechanism; the growth of larger aggregates proceeds by the gradient mecha
nism and is accompanied by the detachment of fragments. Parameters of equil
ibrium spectrum characterizing average masses and the number of particles i
n fine and coarse fractions were determined as functions of a flow shear ra
te, aggregate fractal dimension, parameters of particle interaction in aggr
egates, and the properties of the initial dispersed phase.