Hydrothermal synthesis and characterization of (1−x)K0.5Na0.5NbO3–xBi0.5Na0.5TiO3 lead-free ceramics

Structural and optical properties of KNN nanocubes synthesized by a green route using gelatin

“…In addition, decreasing the particle size affects the other properties of the material such as optical and electrical, because of the appearance of quantum confinement. 6 There are several methods for the synthesis of alkali niobates nanostructure such as hydrothermal, 12,13 solvothermal, 14 coprecipitation, 15 and sol-gel. 16,17 Among these, sol-gel is mostly employed to prepare KNN powders.…”

Perovskite Oxides Prepared by Hydrothermal and Solvothermal Synthesis: A Review of Crystallisation, Chemistry, and Compositions

“…[261] Hydrothermal synthesis of (1-x)K0.5Na0.5NbO3-xBi0.5Na0.5TiO3 was investigated and depending on composition, phase separation was often found, and piezoelectric properties of ceramics formed from the powders were not optimal. [262] Enhanced piezoresponse and electric field induced relaxor-ferroelectric phase transition was found in NBT-0.06BT ceramics prepared from hydrothermally synthesised nanoparticles. [263] Zirconate solid solutions have similarly been prepared: for example, BaZr1-xHfxO3 from microwave-heated hydrothermal reactions, [264] and growth of Ba1-xSrxZrO3 (0  x  1) nanoparticles in supercritical water [265] As well as solid-solutions and substitutional variants of titanate perovskites, some focus has been made on the preparation of heterostructures of ATiO3 perovskites and TiO2…”