Synthesis and Properties of SrTiO3 Ceramic Doped with Sm2O3

The aim of this work was to study the effect of samarium oxide doping on a SrTiO3 perovskite ceramic. After analyzing the data obtained on the morphological features of the synthesized structures, it was found that an increase in the dopant concentration led not only to a change in the morphological features, but also in the density of the ferroelectrics. Using the X-ray diffraction method, it was found that doping with Sm2O3 led to the formation of a multiphase system of two cubic phases of SrTiO3 and Sm2O3. At the same time, an increase in the concentration of Sm2O3 dopant led to a change in the crystallinity degree, as well as deformation of the structure. Evaluation of the efficiency of use of synthesized ferroelectrics as catalysts for purification of aqueous media from manganese showed that an increase in the concentration of Sm2O3 dopant led to an increase in purification efficiency by 50–70%.

Synthesis, structural and dielectric properties of Ca doped PbTiO3 ceramic prepared by hydrothermal method

In this work, perovskite ceramic materials of composition Pb1-xCaxTiO3 (PCxT) were elaborated by the hydrothermal method at relatively low temperature. In a basic environment, pressure and temperature are critical factors...

Giant high-temperature piezoelectricity in perovskite oxides for vibration energy harvesting

Based on the lattice distortion modulation strategy, a record-high in situ quasi-static d33 at 400 °C is achieved in a 0.355BiScO3-0.635PbTiO3-0.01Bi(Zn0.5Hf0.5)O3 perovskite ceramic used in high-temperature energy harvesting.