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极化调控PIN-PMN-PT铁电单晶压电性能的均匀性
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作者 梁敏 熊瑞彬 +5 位作者 陈淑丽 王祖建 苏榕冰 苏彬 刘颖 何超 《人工晶体学报》 CAS 北大核心 2024年第6期953-958,共6页
弛豫铁电单晶具有优异的压电性能,在医学超声换能器、水声器件等领域有重要应用。坩埚下降法生长的弛豫铁电单晶不可避免地存在组分偏析,导致材料利用率极低。本工作测试了0.24PIN-0.46PMN-0.30PT铁电单晶沿生长方向压电系数(d_(33))和... 弛豫铁电单晶具有优异的压电性能,在医学超声换能器、水声器件等领域有重要应用。坩埚下降法生长的弛豫铁电单晶不可避免地存在组分偏析,导致材料利用率极低。本工作测试了0.24PIN-0.46PMN-0.30PT铁电单晶沿生长方向压电系数(d_(33))和介电常数(ε_(33)^(T)/ε_(0))的变化,结果显示d_(33)和ε_(33)^(T)/ε_(0)沿着生长方向变化极大,能保持性能接近的区域不足20 mm。通过针对不同区域的极化设计,对铁电-铁电相变温度接近的区域进行极化调控,使超过60%晶体部分的d_(33)和ε_(33)^(T)/ε_(0)分别维持在(1500±140)pC·N-1和4900±350。为了验证极化调控后的晶体谐振区域是否一致,测试了两端区域的k_(33)振子的谐振谱,结果显示两者的机电耦合系数接近,谐振和反谐振的峰位置也接近,而且不存在额外的寄生振动,说明采用极化调控PIN-PMN-PT铁电单晶沿生长方向的均匀性是可行的。本工作为提高PIN-PMN-PT铁电单晶的利用率提供了一种参考方案。 展开更多
关键词 pin-pmn-pt 铁电单晶 极化调控 组分分凝 压电系数
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高性能PMN-PT系铁电单晶在医疗超声中的产业化进展 被引量:1
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作者 郑曙光 徐卓 《声学技术》 CSCD 北大核心 2021年第5期739-742,共4页
PMN-PT系铁电单晶因其出色的压电和高机电耦合系数的特性,在超声换能器领域具有非常好的应用前景。近年来,我国一些研究团队在铁电单晶的理论研究和晶体生长上取得了突破性成就,为铁电单晶在医疗超声领域的大规模应用奠定了坚实的基础... PMN-PT系铁电单晶因其出色的压电和高机电耦合系数的特性,在超声换能器领域具有非常好的应用前景。近年来,我国一些研究团队在铁电单晶的理论研究和晶体生长上取得了突破性成就,为铁电单晶在医疗超声领域的大规模应用奠定了坚实的基础。文章概述了近年来一些研究团队在铁电单晶上的研究进展,以及医用超声换能器领域中使用铁电单晶的工作进展,总结了国内超声企业在铁电单晶换能器产业化的进程。 展开更多
关键词 铁电单晶 pmn-pt pin-pmn-pt 医疗超声 换能器
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超大机电耦合系数声波谐振器的研究 被引量:1
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作者 张小德 王华磊 +2 位作者 李儒章 钟慧 石玉 《压电与声光》 CAS 北大核心 2021年第3期328-330,335,共4页
该文研究了Pb(In_(1/2)Nb_(1/2))O_(3)-Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3)(PIN-PMN-PT)基片上声表面波(SAW)的传播特性。利用COMSOL软件建立SAW谐振器三维模型并进行模拟仿真。通过优化谐振器参数,设计了一种具有超大机电耦合系数(K^... 该文研究了Pb(In_(1/2)Nb_(1/2))O_(3)-Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3)(PIN-PMN-PT)基片上声表面波(SAW)的传播特性。利用COMSOL软件建立SAW谐振器三维模型并进行模拟仿真。通过优化谐振器参数,设计了一种具有超大机电耦合系数(K^(2))的谐振器结构。结果表明,当欧拉角为(0°,-70°,0°)时,SH0模态的K^(2)可优化到约85%,且通带内无寄生响应。 展开更多
关键词 声表面波(SAW) pin-pmn-pt COMSOL SH_(0)模态 机电耦合系数
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Domain structure and dielectric diffusion-relaxation characteristics of ternary Pb(In_(1/2)Nb_(1/2))O_(3)-Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3)ceramics
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作者 Xudong Qi Kai Li +3 位作者 Lang Bian Enwei Sun Limei Zheng Rui Zhang 《Journal of Advanced Dielectrics》 2022年第6期8-17,共10页
Relaxor-based ternary Pb(In1/2Nb1/2)O_(3)-Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3)(PIN-PMN-PT)single crystals and ceramics are promis­ing candidates for high-performance electromechanical conversion devices.It is know... Relaxor-based ternary Pb(In1/2Nb1/2)O_(3)-Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3)(PIN-PMN-PT)single crystals and ceramics are promis­ing candidates for high-performance electromechanical conversion devices.It is known that the domain structure and dielectric diffusion-relaxation characteristics are crucial to the excellent performances of relaxor ferroelectrics.In this work,we prepared the PIN-PMN-PT ceramics with various PIN/PMN proportions and systematically investigated their domain structure and dielec­tric diffusion-relaxation properties.The effect of PIN/PMN proportion on the domain size and dielectric diffusion-relaxation characteristics was also studied.The investigations showed that PIN-PMN-PT ceramics presented multi-type domain patterns comprising irregular island domains and regular lamellar domains.Moreover,the dependent relations of PIN/PMN proportions on the dielectric diffusion and domain size indicated that the PIN composition has a stronger lattice distortion than PMN composi­tion;increasing the PIN proportion can enhance the dielectric diffusion and decrease the domain size.Our results could deepen the understanding of structure-property relationships of multicomponent relaxor ferroelectrics and guide the design and exploration of new high-performance ferroelectric materials. 展开更多
关键词 Piezoelectric ceramics pin-pmn-pt dielectric diffusion and relaxation characteristics domain structure
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PIN–PMN–PT piezoelectric crystals with increased rhombohedral-to-tetragonal phase transition temperature
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作者 Jun Luo Shujun Zhang +1 位作者 Wesley Hackenberger Thomas R.Shrout 《Journal of Advanced Dielectrics》 CAS 2014年第1期56-61,共6页
In this work,crystal growth and characterization of PIN–PMN–PT(29–59%PIN and 28–35%PT)were conducted to understand how PIN ratio in the PIN–PMN–PT system impacts its phase stability during crystallization.High-q... In this work,crystal growth and characterization of PIN–PMN–PT(29–59%PIN and 28–35%PT)were conducted to understand how PIN ratio in the PIN–PMN–PT system impacts its phase stability during crystallization.High-quality PIN–PMN–PT crystals with 36%PIN were obtained using the self-seeded Bridgman process,even though the cubic phase In_(2)O_(3) formed at the very beginning of solidification.The melt became more unstable when the PIN ratio in the PIN–PMN–PT system increased to 49%and above,which affected the composition and quality of the as-grown crystals significantly.By increasing the PIN to 36%in PIN–PMN–PT crystal,the rhombohedral-to-tetragonal phase transition temperatures and the coercive field reached 115–135℃ and 4.55.6 kV/cm,respectively,that greatly expanded the operation domains compared to PMN–PT crystals. 展开更多
关键词 pin-pmn-pt crystal growth the Bridgman method piezoelectric property dielectric property
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Dielectric behavior and phase transition in [111]-oriented PIN–PMN–PT single crystals under dc bias
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作者 Yuhui Wan Zhenrong Li +4 位作者 Ming Ma Fei Li Zhuo Xu Shiji Fan Xi Yao 《Journal of Advanced Dielectrics》 CAS 2014年第1期75-80,共6页
Temperature and electric field dependences of the dielectric behavior and phase transition for[111]-oriented 0.23PIN–0.52PMN–0.25PT(PIN-PMN–0.25PT)and 0.24PIN–0.43PMN–0.33PT(PIN–PMN–0.33PT)single crystals were ... Temperature and electric field dependences of the dielectric behavior and phase transition for[111]-oriented 0.23PIN–0.52PMN–0.25PT(PIN-PMN–0.25PT)and 0.24PIN–0.43PMN–0.33PT(PIN–PMN–0.33PT)single crystals were investigated over a temperature range from100℃ to 250℃ using field-heating(FH)dielectric measurements.The transition phenomenon from ferroelectric microdomain to macrodomain was found in rhombohedra(R)phase region in the single crystals under dc bias.This transition temperature T_(f) of micro-to-macrodomain is sensitive to dc bias and move quickly to lower temperature with increasing dc bias.The phase transition temperatures in the two single crystals shift toward high temperature and the dielectric permittivities at the phase transition temperature decrease with increasing dc bias.Especially,the phase transition peaks are gradually broad in PIN–PMN–0.33PT single crystal with the increasing dc bias.Effects of dc bias on the dielectric behavior and phase transition in PIN–PMN–PT single crystals are discussed. 展开更多
关键词 pin-pmn-pt single crystal electric field phase transition dielectric.
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Crystal growth and property characterization for PIN–PMN–PT ternary piezoelectric crystals
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作者 Jian Tian Pengdi Han 《Journal of Advanced Dielectrics》 CAS 2014年第1期6-10,共5页
Binary piezoelectric crystal Pb(Mg_(1/3)Nb_(2/3))O_(3)–PbTiO_(3)(PMN–PT)has excellent dielectric and piezoelectric properties,which has led to the commercialization for medical ultrasound imaging.Recently,there is a... Binary piezoelectric crystal Pb(Mg_(1/3)Nb_(2/3))O_(3)–PbTiO_(3)(PMN–PT)has excellent dielectric and piezoelectric properties,which has led to the commercialization for medical ultrasound imaging.Recently,there is a growing demand for piezoelectric crystals with improved thermal and electrical properties.Ternary piezoelectric crystals Pb(In_(1/2)Nb_(1/2))O_(3)–Pb(Mg_(1/3)Nb_(2/3))O_(3)–PbTiO_(3)(PIN–PMN–PT)have increased depoling temperature and coercive field than binary PMN–PT.To better understand the ternary crystal system and improve crystal properties,we systematically investigated crystal growth of PIN–PMN–PT with modified Bridgman method.Like PMN–PT,PIN–PMN–PT crystals have excellent piezoelectric properties(e.g.,k_(33)0:87–0.92,d_(33)1000–2200 pm/V).Higher PIN content leads to40C increase in depoling temperature and more than doubling of coercive field(7.0 kV/cm).Such improvements are advantageous for applications where high temperature and/or high-drive are needed. 展开更多
关键词 pin-pmn-pt ternary crystals coercive field thermal stability.
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超快激光制备高频1-3型PIN-PMN-PT复合材料超声换能器
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作者 刘友健 雷智洪 +2 位作者 吴俊伟 陈燕 纪轩荣 《压电与声光》 CAS 北大核心 2023年第2期288-293,共6页
与其他压电材料相比,1-3型压电单晶复合材料具有优异的压电性能和更匹配的声学特性,更有利于制备出性能优异的超声换能器。该文通过有限元软件COMSOL对复合材料的振动模态及阻抗特性进行了系统的研究,同时采用皮秒激光制备了高频1-3型Pb... 与其他压电材料相比,1-3型压电单晶复合材料具有优异的压电性能和更匹配的声学特性,更有利于制备出性能优异的超声换能器。该文通过有限元软件COMSOL对复合材料的振动模态及阻抗特性进行了系统的研究,同时采用皮秒激光制备了高频1-3型Pb(In_(1/2)Nb_(1/2))O_(3)-Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3)(PIN-PMN-PT)铁电单晶/环氧树脂复合材料,并进行了性能表征。该1-3复合材料机电耦合系数为0.65,声阻抗为19.96 MRayls。该复合材料可用于制备高频超声换能器,结果表明,换能器中心频率为17.68 MHz,-6 dB带宽为84.38%,插入损耗为-25.4 dB。 展开更多
关键词 1-3型压电复合材料 Pb(In_(1/2)Nb_(1/2))O_(3)-Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3)(pin-pmn-pt)单晶 皮秒激光 超声换能器 有限元
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改进Oliver-Pharr法在铁电单晶纳米压痕中的应用 被引量:1
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作者 张伟光 李继军 +2 位作者 杨诗婷 侯小虎 邢永明 《辽宁工程技术大学学报(自然科学版)》 CAS 北大核心 2022年第1期79-84,共6页
为解决传统Oliver-Pharr法无法给出接触刚度随压入深度的连续变化关系问题,考虑塑性压痕与周围弹性基体间残余接触应力之间影响,引入虚拟载荷,提出改进Oliver-Pharr法.该方法可连续确定接触刚度,不需要对压头的面积函数进行预先校正.将... 为解决传统Oliver-Pharr法无法给出接触刚度随压入深度的连续变化关系问题,考虑塑性压痕与周围弹性基体间残余接触应力之间影响,引入虚拟载荷,提出改进Oliver-Pharr法.该方法可连续确定接触刚度,不需要对压头的面积函数进行预先校正.将该方法应用到PIN-PMN-PT铁电单晶纳米压痕实验数据分析中,计算了其接触刚度、弹性模量及硬度,并与连续刚度测量法的测量结果进行了比较.研究结果表明:该方法的计算结果与连续刚度测量法的测量结果吻合度高,改进Oliver-Pharr法有效可行. 展开更多
关键词 纳米压痕 改进的Oliver-Pharr方法 pin-pmn-pt铁电单晶 接触刚度 弹性模量 硬度
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Greatly enhanced electro-optic modulation efficiency in titanium in-diffusion PIN-PMN-PT waveguide
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作者 Qingyuan Hu Yuebin Zhang +7 位作者 Huimin Liao Xin Liu Pengfei Li Yali Feng Lei An Yongyong Zhuang Zhuo Xu Xiaoyong Wei 《Journal of Advanced Ceramics》 SCIE EI CAS CSCD 2023年第7期1454-1462,共9页
Electro-optic modulators,which convert electrical signals onto the transmission light,are key devices in electro-optic modulating systems.Modulation efficiency is one of the most important parameters of an electro-opt... Electro-optic modulators,which convert electrical signals onto the transmission light,are key devices in electro-optic modulating systems.Modulation efficiency is one of the most important parameters of an electro-optic modulator,which directly determines the footprint and power consumption of the device.Generally,modulation efficiency strongly depends on the electro-optic response of the crystal.The Pb(In_(1/2)Nb_(1/2))O_(3)-Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3)(PIN-PMN-PT)single crystal with giant electro-optic coefficient(λ_(c))and high transparency indicates the potential to achieve greatly enhanced modulation efficiency.In this study,a prototype PIN-PMN-PT phase modulator was fabricated based on a titanium(Ti)in-diffusion waveguide,which is reported for the first time.The influences of titanium in-diffusion on the composition and domain structure of the PIN-PMN-PT single crystal were studied by transmission electron microscopy(TEM)and piezoelectric force microscopy(PFM),respectively.Finally,a half-wave voltage(V_(π))of 2.3 V was obtained using a device with 6-mm-long(L)electrodes.Furthermore,the electro-optic modulation efficiency(V_(π)L)was calculated as 1.38 V-cm,which was approximately one order of magnitude lower than that of commercial lithium niobate(LiNbO_(3),LN)phase modulators.Such enhanced modulation efficiency indicates more compact device and lower power consumption,which is of great significance for electro-optic modulation systems used in micro-fiber gyroscope,integrated photonic devices,etc. 展开更多
关键词 Pb(In_(1/2)Nb_(1/2))O_(3)-Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3)(pin-pmn-pt)single crystal titanium(Ti)in-diffusion WAVEGUIDE electro-optic modulator
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铌铟镁酸铅–钛酸铅单晶的太赫兹传输特性研究 被引量:3
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作者 吴丰民 高敏 +2 位作者 贺训军 林炜鹏 姜久兴 《硅酸盐学报》 EI CAS CSCD 北大核心 2018年第1期53-58,共6页
通过太赫兹时域光谱技术对新型准同型相界组分的三元系弛豫铁电单晶铌铟镁酸铅–钛酸铅[0.24Pb(In1/2Nb1/2)O3–0.43Pb(Mg1/3Nb2/3)O3–0.33PbTiO3(0.24PIN–0.43PMN–0.33PT)]进行测试,并采用时域有限差分法(FDTD),研究了不同... 通过太赫兹时域光谱技术对新型准同型相界组分的三元系弛豫铁电单晶铌铟镁酸铅–钛酸铅[0.24Pb(In1/2Nb1/2)O3–0.43Pb(Mg1/3Nb2/3)O3–0.33PbTiO3(0.24PIN–0.43PMN–0.33PT)]进行测试,并采用时域有限差分法(FDTD),研究了不同厚度和不同电场诱导下单晶的THz波介电调制特性。结果表明:在0.1~1.0 THz频率范围内,厚度和电场都是影响材料介电调制性能的主要影响因素。在0.325 THz处,厚度分别为3、5和7μm时,对应的THz波调制深度分别为31.4%、43.7%和49.9%;在不同电场条件下,在0.543 THz处,调制深度达到了18.3%,而在0.903 THz处,调制深度达到了23.7%。 展开更多
关键词 太赫兹调制 铌铟镁酸铅-钛酸铅单晶 介电常数 铁电晶体
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BiFeO_(3)掺杂Pb(In_(1/2)Nb_(1/2))O_(3)-Pb(Mg1/3Nb2/3)O_(3)-PbTiO_(3)陶瓷的制备与磁电性能研究
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作者 熊能 方梦珠 +1 位作者 潘裕柏 孙大志 《上海师范大学学报(自然科学版)》 2021年第6期672-678,共7页
以固相合成法制备了铁酸铋(BiFeO_(3),简称BFO)掺杂的铌铟酸铅-铌镁酸铅-钛酸铅(Pb(In_(1/2)Nb_(1/2))O_(3)-Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3),简称PIN-PMN-PT)多铁性陶瓷材料,X射线衍射(XRD)测试结果表明:样品具有钙钛矿结构,电滞... 以固相合成法制备了铁酸铋(BiFeO_(3),简称BFO)掺杂的铌铟酸铅-铌镁酸铅-钛酸铅(Pb(In_(1/2)Nb_(1/2))O_(3)-Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3),简称PIN-PMN-PT)多铁性陶瓷材料,X射线衍射(XRD)测试结果表明:样品具有钙钛矿结构,电滞回线显示其铁电性良好,剩余极化值(Pr)可达18μC·cm^(-2).由于BiFeO_(3)掺杂后,样品电矩减小,氧空位增多,使其铁电畴翻转困难,样品的电性能略有下降,但是其磁性能随BiFeO_(3)掺入量的增加而逐渐增强,且样品居里温度(Tm)为200℃左右.该材料在电磁学领域有望成为具有应用前景的多铁性材料. 展开更多
关键词 多铁性 铌铟酸铅-铌镁酸铅-钛酸铅(pin-pmn-pt) 陶瓷
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铒掺杂铌铟酸铅-铌镁酸铅-钛酸铅的光学性质研究
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作者 范志斌 吴彤 《西安文理学院学报(自然科学版)》 2014年第2期1-5,共5页
生长了一种新配比的铒掺杂铌铟酸铅-铌镁酸铅-钛酸铅单晶(25PIN-44PMN-31PT-0.02Er2O3),并对晶体做了完整的冷加工和极化,得到了沿<001>方向极化的晶体样品.在室温下利用椭圆偏振仪测量了晶体的折射率谱,通过最小二乘法拟合得到... 生长了一种新配比的铒掺杂铌铟酸铅-铌镁酸铅-钛酸铅单晶(25PIN-44PMN-31PT-0.02Er2O3),并对晶体做了完整的冷加工和极化,得到了沿<001>方向极化的晶体样品.在室温下利用椭圆偏振仪测量了晶体的折射率谱,通过最小二乘法拟合得到了晶体的赛尔迈耶尔方程各参数.其中Eo=5.471 eV;Ed=22.56 eV;!o=227 nm;So=0.800 2×1014m-2.利用紫外-可见-红外分光光度计获得了晶体透射率谱,晶体紫外吸收边为400 nm.同时通过计算得到了样品的禁带宽度为2.94 eV. 展开更多
关键词 铒掺杂铌铟镁酸铅-钛酸铅晶体 折射率 塞尔迈耶尔光学系数 禁带宽度
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