Phase formation, structural and electric properties of bismuth layered perovskite like ferroelectric ceramics Sr[Bi1 - xTbx](2)[Nb0.9Fe0.05Cr0.05](2)O9 - delta (1) and Sr[Bi1 - xTbx](2)[Ta0.9Fe0.05Cr0.05](2)O9 - delta (2) have been investigated. It has been determined that single phase solid solutions are formed at 0.00 <= x <= 0.04 (1) and 0.00 <= x <= 0.30 (2). The perovskite-like structure of all solid solutions obtained is characterized by the orthorhombic symmetry. The volume of the unit cell and T-C of solid solutions 1 and 2 has been found to decrease with x increasing. (C) 2012 Elsevier B.V. All rights reserved.