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High-resolution synchrotron X-ray powder diffraction measurement with multiple-detector system has been performed to investigate the scaling effect in ferroelectric PbxSr1-xTiO3 nanoparticles at ambient temperature with various sizes ranging from 10 to 200 nm and various compositions. The peak profiles of the 200 reflections show a large broadening and asymmetry for all particle sizes with decreasing...
Recently, lead free materials are being extensively investigated to replace the PZT ceramics. Potassium niobate (KNbO3) single crystals were successfylly grown by the TSSG technique. However, potassium niobate has problems of three phase transition temperatures (cubic to tetragonal, tetragonal to orthorhombic and orthorhombic-rhombohedoral), the orthorhombic structure at room temperature and complicated...
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