The influence of A-site strontium ion in controlling the microstructure and electrical properties of P1−xSxZNZT ceramics
作者： Mupeng Zheng , Yudong Hou , Yunge Yue , Hongxi Chen , Mankang Zhu
DOI: 10.1063/1.4947518
关键词: Permittivity 、 Ceramic 、 Mineralogy 、 Dielectric 、 Microstructure 、 Grain size 、 Tetragonal crystal system 、 Ferroelectricity 、 Materials science 、 Ferroelectric ceramics 、 Composite material
摘要: A Pb1−xSrx(Zn1/3Nb2/3)0.2(Zr0.5Ti0.5)0.8O3 (P1−xSxZNZT, 0.00 ≤ x 0.10) system was prepared through a conventional solid oxide process. Increasing addition of Sr2+ found to induce continuous decrease in grain size from 2.46 μm 1.14 μm, accompanied by phase transformation coexisting rhombohedral and tetragonal phases only. The underlying mechanism the evolution dielectric ferroelectric behavior P1−xSxZNZT ceramics ascribed synergy between effect dilution Pb-O covalency. Additionally, on domain wall displacement be main origin superior permittivity piezoelectricity at intermediate size. optimal electrical properties achieved for P0.95S0.05ZNZT specimen about 1.79 μm, d33 = 465 pC/N, d33 × g33 = 11 047 × 10−15 m2/N make this material promising multilayer energy harvesting device applications.
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