Abstract
Lead iron niobate, Pb(Fe0.5Nb0.5)O3 belong to a family of materials with a perovskite structure with the general formula A(B′B″)O3, where in positions A–Pb ions substitute themselves, and in octahedral positions B′ and B″ ions of iron Fe and niobium Nb in a random way. The Pb(Fe0.5Nb0.5)O3 material is characterized by two ordered antiferromagnetic and ferroelectric sub‐systems. A technological process of the ferroelectromagnetic Pb(Fe0.5Nb0.5)O3 ceramics have a significant influence on a crystalline structure and a ceramics microstructure.In the present paper, we study a sol‐gel technology of the production of the Pb(Fe0.5Nb0.5)O3 ceramics. The obtained specimens were subjected to micro‐structural examinations and tests of mechanical and dielectric properties. Temperature dependences of mechanical loss Q–1(T) and Young's modulus E(T) were conducted by an automatic relaxator of acoustic frequencies of a RAK‐3 type and dielectric test were made on a capacity bridge of a QuadTech 1920 Precision LCR Meter type.
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