PhysicOchemical properties of Bi<sub>1-x</sub>La<sub>x</sub>Fe<sub>1-x</sub>Co<sub>x</sub>O<sub>3</sub> solid solutions synthesized USING different methods
Solid solutions of BiFeO<sub>3</sub> - LaCoO<sub>3</sub>system were synthesized using solid-state and sol-gel technology. The parameters of the crystal lattice were determined. Temperature dependences of electrical conductivity and thermal expansion of the samples Bi<sub>1-x</sub>La<sub>x</sub> Fe<sub>1-x</sub>Co<sub>x</sub>O<sub>3</sub>( x = 0; 0,05; 0,1; 1,0) were investigated in air in the temperature range 300-1050 K. It is shown that usage of sol-gel technology allowed to reduce the temperature and time of synthesis. At the same time the samples prepared by solid-state method had a lower coefficient of thermal expansion and electrical conductivity.