A Novel Hybrid Method of Sol–Gel and Ultrasonic Atomization Synthesis and Piezoelectric Properties of SrBi4Ti4O15 Ceramics |
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| Authors: | Zhijun Xu Ruiqing Chu Jigong Hao Guorong Li Qingrui Yin |
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| Affiliation: | College of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China;
The State Key Lab of High Performance Ceramics and Superfinemicrostructure, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, China |
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| Abstract: | SrBi4Ti4O15(SBTi) powders were synthesized by a novel hybrid method of sol–gel and ultrasonic atomization. TiO2 particle was used as a starting material to replace other expensive soluble titanium salts. X-ray diffraction results showed that the pure-phase SBTi powders were obtained at 700°C for 2 h, which is much lower than the calcination temperature (800°–850°C) required in solid-state reactions. The ceramics sintered at 1100°C for 1 h exhibited 94.5% of relative density and a piezoelectric coefficient of 21 pC/N. The results showed that this hybrid method could lead to an attractive method for the industrial fabrication of SBTi materials. |
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