Relaxor-PbTiO₃-based ternary ferroelectric solid-solution ceramics with high Curie temperature end members are effective to achieve broader usage temperature range and drive field stability, meanwhile with comparable piezoelectric responses to binary Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ (PMN-PT). Templated grain growth is viable alternative to crystal growth that uses templates to induce crystal orientation along a specific direction, thus enhancing the piezoelectric response. In this research, perovskite Pb(Sc_1/2Nb_1/2)O₃-PbZrO₃-PbTiO₃ (PSN-PZ-PT) system with varying components is developed to determine the morphotropic phase boundary; together with the texturing characteristics, a high piezoelectric response with broad temperature usage range is expected. 37.5PSN-20PZ-42.5PT exhibits enhanced piezoelectric d₃₃ of 530 pC N⁻¹ and strain level of 0.20% at 20 kV cm⁻¹, while retaining a high Curie temperature of 309 °C. Of particular interest is that a high piezoelectric voltage coefficient g₃₃, totaling 56 × 10⁻³ Vm N⁻¹ can be achieved in this composition, leading to a high figure of merit, (d₃₃ × g₃₃)/tan δ, of 5.8 × 10⁻¹⁰ m² N⁻¹, one order higher than that of PMN-PT textured counterpart, being potential for energy harvesting and hydrophone applications.

中文翻译：

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通过模板晶粒生长提高 Pb(Sc1/2Nb1/2)O3-PbZrO3-PbTiO3 压电陶瓷的机电性能

具有高居里温度端部的弛豫-PbTiO _{3基三元铁电固溶体陶瓷可有效实现更宽的使用温度范围和驱动场稳定性，同时具有与二元 Pb(Mg 1/3} Nb _2/3 )O相当的压电响应₃ -PbTiO ₃ (PMN-PT)。模板晶粒生长是晶体生长的可行替代方案，晶体生长使用模板沿特定方向诱导晶体取向，从而增强压电响应。在本研究中，钙钛矿 Pb(Sc _1/2 Nb _1/2 )O ₃ -PbZrO ₃ -PbTiO ₃（PSN-PZ-PT）系统开发了不同的成分，以确定变态相界；连同纹理特性，预计具有宽温度使用范围的高压电响应。37.5PSN-20PZ-42.5PT在 20 kV cm ^-1下表现出530 pC N ^{-1的增强压电}d ₃₃和 0.20% 的应变水平，同时保持 309 °C 的高居里温度。特别令人感兴趣的是，在该组合物中可以实现总计 56 × 10 ^-3  Vm N ^-1的高压电电压系数g _{33 ，从而导致高品质因数 (} d ₃₃  × g ₃₃)/tan δ，为 5.8 × 10 ^-10  m ²  N ^-1，比 PMN-PT 纹理对应物高一个数量级，具有能量收集和水听器应用的潜力。