The Effects of Thermo-Baric Synthesis on the Structure and Properties of the Ferroelectric Li_(0.125)Na_(0.875)NbO_3 Solid Solution

摘要

Results of X-ray diffraction, dielectric, and Raman studies of the ferroelectric Li_(0.125)Na_(0.875)NbO_3 solid solution obtained under hot-pressing conditions (6 GPa, 1400 and 1800 K) are compared with those of the same compound synthesized by conventional ceramics technology. The thermo-barometric synthesis is found to improve the ordering of cations and to increase the value of dielectric permittivity and ion conductivity of the ceramics.