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程向群 , 李晓峰 , 王亚斌 , 等 . 高瞬态冲击下陶瓷电容器损伤过程的参数漂移特性 [J ] . 兵工学报 , 2020 , 41 ( 2 ): 234 - 240 .

CHENG X Q , LI X F , WANG Y B , et al . Parameter drift characteristics of ceramic capacitors during damage under high transient impact [J ] . Acta Armamentarii , 2020 , 41 ( 2 ): 234 - 240 . (in Chinese)

YANG G , YUE Z X , GUI Z L , et al . Dielectric responses of modified BaTiO 3 in multilayer ceramic capacitors(MLCCs) to the combined uniaxial stress and dc bias fields [J ] . Journal of Applied Physics , 2008 , 104 ( 7 ): 074115 . DOI: 10.1063/1.2998906 http://doi.org/10.1063/1.2998906 https://pubs.aip.org/jap/article/104/7/074115/146272/Dielectric-responses-of-modified-BaTiO3-ceramics https://pubs.aip.org/jap/article/104/7/074115/146272/Dielectric-responses-of-modified-BaTiO3-ceramics Dielectric measurements of modified BaTiO3 in a multilayer ceramic capacitor (MLCC) show that the application of external uniaxial stress perpendicular to electric field in a MLCC can lead to a slight increase in the dielectric permittivity. The additional application of a dc bias results in a significantly suppressed dielectric permittivity in the temperature range from 228 to 453 K. These observations can be explained as a result of domain wall movements in grains with a core-shell structure, due to the combined stress and dc bias field. As the dc bias increased up to 5.6 MV/m, the Curie peak, which has diffuse phase transition characteristics in the absence of dc bias, becomes sharper, and two new peaks are induced at about 250 and 315 K. Furthermore, the first order paraelectric-ferroelectric phase transition of the modified BaTiO3 ceramic becomes stronger with increasing dc bias when a uniaxial stress is also applied.

YANG G , YUE Z X , JI Y , et al . Dielectric nonlinearity of piezoelectric stack actuator under combined uniaxial compressive stress and electric field [J ] . Journal of Applied Physics , 2008 , 104 ( 7 ): 074116 . DOI: 10.1063/1.2999441 http://doi.org/10.1063/1.2999441 https://pubs.aip.org/jap/article/104/7/074116/146264/Dielectric-nonlinearity-of-stack-piezoelectric https://pubs.aip.org/jap/article/104/7/074116/146264/Dielectric-nonlinearity-of-stack-piezoelectric The dielectric nonlinearity of stack lead zirconium titanate (PZT) piezoelectric actuator was investigated under the combined uniaxial mechanical and electric loads. In the intermediate electric field region (Rayleigh region), the Rayleigh coefficient increases at less than 50 MPa, beyond which it declines. Similarly, the dielectric nonlinearity identified by P-E hysteresis loop, revealed by both the dielectric measurement and the Rayleigh law fitting, also shows an initial increase at less than 50 MPa and a subsequent decrease when stress is above 50 MPa. In the high electric field region, the dielectric nonlinearity declined continuously with increasing stress, which leads to a fact that a boundary between the Rayleigh region and high field region becomes smeared. These results could be interpreted as the influences of the applied stress on ferroelectric domain-related contributions to dielectric response, which is very important to the practical application of stack piezoelectric actuators.

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郗雪艳 . BaTiO 3 -BaScO 3 基介电陶瓷结构与电性能研究 [D ] . 西安 : 西安科技大学 , 2020 .

XI X Y . Study on structure and electrical properties of BaTiO 3 -BaScO 3 based dielectric ceramics [D ] . Xi’an : Xi’an University of Science and Technology , 2020 . (in Chinese)

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万强 , 陈常青 , 沈亚鹏 . 铁电陶瓷PZT53复杂力电耦合行为的实验研究 [J ] . 力学学报 , 2005 , 37 ( 4 ): 413 - 420 . DOI: 10.6052/0459-1879-2005-4-2004-208 http://doi.org/10.6052/0459-1879-2005-4-2004-208 通过实验研究了平行和垂直于极化方向的正应力对铁电陶瓷锆钛酸铅(PZT53)的电滞回线(E3-P3)和电致应变曲线(E-ε)的影响. 实验发现平行于极化方向的压应力对PZT53陶瓷的电滞回线、电致应变曲线形状以及矫顽场大小都有明显的影响，但是垂直于极化方向的拉、压应力只对PZT53陶瓷的电致应变曲线形状有明显的影响，但对电滞回线形状和矫顽场大小都没有显著影响. 采用畴翻转的模型详细解释了观察到的实验现象，所得结果为建立铁电陶瓷的多轴力、电耦合本构模型，提供了物理基础.

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LI Y L , CROSS L E , CHEN L Q . A phenomenological thermodynamic potential for BaTiO 3 single crystals [J ] . Journal of Applied Physics , 2005 , 98 ( 6 ): 064101 . DOI: 10.1063/1.2042528 http://doi.org/10.1063/1.2042528 https://pubs.aip.org/jap/article/98/6/064101/292046/A-phenomenological-thermodynamic-potential-for https://pubs.aip.org/jap/article/98/6/064101/292046/A-phenomenological-thermodynamic-potential-for A phenomenological thermodynamic potential was constructed based on the properties of bulk BaTiO3 single crystals. An eighth-order polynomial of Landau-Devonshire expansion was employed. It reproduces bulk properties including the three possible ferroelectric transition temperatures and their dependence on electric fields, as well as the dielectric and piezoelectric constants. Different from the existing thermodynamic potential, it is applicable to predicting the ferroelectric phase transitions and properties of BaTiO3 thin films under large compressive biaxial strains.

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