(1-x)(Na0.5Bi0.5)TiO3-xBa(Mg0.5W0.5)O3 particles with x=0.00-0.08 were synthesized by a solvothermal approach at 230°C for 48h. The results of X-ray diffraction analysis revealed a rhombohedral-tetragonal morphotropic phase boundary (MPB) composition existed in the range of x=0.05-0.06 at room temperature. The ceramics around the phase boundary composition provide excellent piezoelectric properties, i.e., the highest piezoelectric constant, d33, (108pC/N) could be realized at x value of 0.05. By using a casting sintering method, the ceramics consisted of the oriented rod-like particles with condensed sintering body were obtained, and the piezoelectric properties could be improved to show such a high piezoelectric constant as d33=112pC/N at x value of 0.05.
- Morphotropic phase boundary (MPB)
- Solvothermal approach
ASJC Scopus subject areas
- Ceramics and Composites