压电材料

Piezoelectric material

　　压电材料是指一类具有压电效应的功能材料，利用压电材料的正逆压电效应，可用于制备水声换能器、超声换能器、电声器件、滤波器、传感器、微位移驱动器等，在舰船、航空航天、能源、医疗等领域得到广泛应用。 

　　Piezoelectric materials refer to a class of functional material with piezoelectric effect. Using its direct, inverse piezoelectric effect, piezoelectric material can be used to prepare underwater acoustic transducer, ultrasonic transducer, electro-acoustic device, filter, sensor and micro-displacement actuator etc., which has been already used widely in ships, aerospace, energy and medical field.  

　　研究内容包括： 

　　Research interests: 

• Pb(Zr,Ti)O₃基压电陶瓷材料 

　　Pb(Zr,Ti)O₃ based piezoelectric ceramic 

　　（1）大功率和收发两用型压电陶瓷材料 

　　High power and transimitt-receive piezoelectric ceramic 

　　（2）高介电常数压电陶瓷材料 

　　High dielectric constant piezoelectric ceramic  

　　（3）高温度稳定性压电陶瓷材料 

　　High temperature stability piezoelectric ceramic 

　　（4）低温烧结压电陶瓷材料 

　　Low temperature sintering piezoelectric ceramic 

• 高温压电陶瓷材料 

　　Piezoelectric ceramic for high temperature application 

　　（1）铋层状压电陶瓷材料 

　　Bismuth layer structured piezoelectric ceramics 

　　（2）类钙钛矿压电陶瓷材料 

　　Perovskite-like layer structured piezoelectric ceramics 

　　（3）BiScO₃-PbTiO₃基压电陶瓷材料 

　　BiScO₃-PbTiO₃ based piezoelectric ceramics 

　　（4）PbNb₂O₆基压电陶瓷材料 

　　PbNb₂O₆ based piezoelectric ceramics 

• 压电复合材料 

　　Piezoelectric composite 

　　（1）低Q宽带压电复合材料 

　　Low Q broadband piezoelectric composite 

　　（2）高温压电复合材料 

　　High temperature piezoelectric composite 

　　（3）复杂结构（球面、曲面等）压电复合材料 

　　Complex structure (spherical, curved, etc.) piezoelectric composite material 

• 无铅压电陶瓷材料 

　　Lead-free piezoelectric ceramic 

　　（1）BaTiO₃基压电材料 

　　BaTiO₃ based piezoelectric ceramic 

　　（2）BiFeO₃基压电材料 

　　BiFeO₃based piezoelectric ceramic 

　　（3）NaNbO₃基压电材料 

　　NaNbO₃ based piezoelectric ceramic 

• 压电薄膜 

　　Piezoelectric thin films 

　　（1）PZT压电薄膜 

　　PZT-based Piezoelectric thin films 

　　（2）高温压电薄膜 

　　High temperature Piezoelectric thin films 

　　（3）无铅压电薄膜 

　　Lead-free piezoelectric thin films 

• 多场耦合下压电材料性能演变、服役行为及失效机理； 

　　Properties evolution, service behavior and failure mechanism of piezoelectric ceramics under multi-field loadings 

• 压电材料工程应用与批量生产 

　　Applied engineering and mass production of piezoelectric ceramics 

　　  

　　代表性论文: 

　　Representative articles and publications:  

1. Xinchun Xie，Tianzi Wang，Zhiyong Zhou*，Guofeng Cheng，Ruihong Liang and Xianlin Dong*, Enhanced piezoelectric properties and temperature stability of Bi₄Ti₃O₁₂-based Aurivillius ceramics via W/Nb substitution, Journal of European Ceramic Society, 39, 957-962 (2019).  
2. L. Wang, R. H. Liang*, Z. Y. Zhou, and X. L. Dong*, High electrostrain with high Curie temperature in A-site deficient Sr_0.8La_0.1□_0.1TiO_2.95 modified BiFeO₃-BaTiO₃ ceramics, Scripta Materialia 164, 62 (2019). 
3. L.Wang, R.H. Liang, Z.Y.Zhou, X.L.Dong, Thermally stable electrostrain in BiFeO₃-BaTiO₃-based high temperature lead-free piezoceramics, Applied Physics Letter, 115, 082902 (2019). 
4. M. X. Zhou, R. H. Liang*, Z. Y. Zhou, and X. L. Dong*, Achieving ultrahigh energy storage density and energy efficiency simultaneously in sodium niobate-based lead-free dielectric capacitors via microstructure modulation, Inorganic Chemistry Frontiers 6, 2148 (2019). 
5. Xinchun Xie, Zhiyong Zhou*, Tao Chen, Ruihong Liang and Xianlin Dong*, Enhanced electrical properties of NaBi modified CaBi₂Nb₂O₉-based Aurivillius piezoceramics via structural distortion, Ceramic Internatinal, 45, 5425-5430(2019). 
6. M. X. Zhou, R. H. Liang*, Z. Y. Zhou, and X. L. Dong*, Novel BaTiO3-based lead-free ceramic capacitors featuring high energy storage density, high power density, and excellent stability, Journal of Materials Chemistry C 6, 8528(2018). 
7. M. X. Zhou, R. H. Liang*, Z. Y. Zhou, and X. L. Dong*, Superior energy storage properties and excellent stability of novel NaNbO3-based lead-free ceramics with A-site vacancy obtained via a Bi₂O₃ substitution strategy, Journal of Materials Chemistry A 6, 17896 (2018). 
8. M. X. Zhou, R. H. Liang*, Z. Y. Zhou, and X. L. Dong*, Novel sodium niobate-based lead-free ceramics as new environment-friendly energy storage materials with high energy density, high power density, and excellent stability, ACS Sustainable Chemistry & Engineering 6, 12755 (2018). 
9. N. T. Liu, R. H. Liang*, Z. Y. Zhou, X. L. Dong*， Designing lead-free bismuth ferrite-based ceramics learning from relaxor ferroelectric behavior for simultaneous high energy density and efficiency under low electric field， Journal of Materials Chemistry C，6, 10211（2018).  
10. Xinchun Xie, Zhiyong Zhou*, Tianzi Wang, Ruihong Liang and Xianlin Dong*, High temperature impedance properties and conduction mechanism of W⁶⁺-doped CaBi₄Ti₄O₁₅ Aurivillius piezoceramics, Journal of Applied Physics, 124, 204101 (2018). 

 

 

 

压电功能器件

Piezoelectric functional devices

　　压电器件是利用压电材料的正逆压电效应和机电耦合效应制成的器件。压电换能器以其工作频率宽、性能稳定、可靠性高、驱动力大等优点被广泛地应用于航空航天、油气勘探、医疗、水声及工业无损探伤等领域。 

　　课题组主要针对基于压电陶瓷和压电复合材料的油气勘探用高温高稳定压电换能器、医学诊断和无损检测用定量超声换能器、超声影像用压电换能器、功率型超声治疗类压电换能器、高频压电复合材料换能器（≥15MHz）、用于流量和风速测试的气介换能器及压电叠层驱动器的开展研究与开发。 

　　Piezoelectric transducer is a device applied by piezoelectric material's positive and negative piezoelectric effect and electromechanical coupling effect. Piezoelectric transducer is widely used in aerospace, oil and gas exploration, medical treatment, underwater acoustic and industrial nondestructive testing due to its wide working frequency, stable performance and high reliability. 

　　The research group mainly focuses on research and development of the high temperature and high stability piezoelectric transducer for oil and gas exploration, quantitative ultrasonic transducer for medical diagnosis and nondestructive testing, piezoelectric transducer for ultrasonic imaging, piezoelectric transducer for power ultrasonic therapy, high frequency piezoelectric composite material transducer (≥15MHz), nd gas transducer for flow and wind speed measurement ,and multilayer piezoelectric actuators, all of which based on piezoelectric ceramics and piezoelectric composite materials. 

　　主要研究内容包括： 

　　Research interests: 

　　⑴器件的设计、研制与性能研究； 

　　The design, development and performance research of device 

　　⑵特殊环境下器件服役行为研究； 

　　Service behavior research of device in special circumstances 

　　相关专利: 

　　1、范晓荣、姚烈、瞿耀明、董显林，低频窄脉冲超声换能器，中国发明专利，ZL201310721788.0 

　　2、周学农、范晓荣、陈刚、董显林，一种高频超声换能器，实用新型专利，CN 200420082769   

　　主要产品 

　　（一）油气勘探领域 

　　1、 BHTV声成像高温聚焦换能器 

 

　　主要性能 

• 中心频率：250kHz； 
• 焦距：2寸：  71mm；1.5寸： 51mm 
• 声束宽度：<10mm 
• 耐温：200℃　  　　  

 

　　2、SBT水泥胶结测井换能器 

 

　　主要性能 

• 频率：120kHz(厚向)   80kHz(径向) 
• 灵敏度：>300dB 
• 耐温：230℃ 

 

　　3、高温偶极子发射换能器 

 

　　主要性能 

• 频率：<5kHz; 
• 耐温：230℃ 

 

　　4、高温多极子接收换能器 

　　主要性能 

• 频率：300kHz（首峰） 
• 接收灵敏度：-187dB 
• 耐温：230℃ 

 

　　5、高灵敏高稳定海洋地震勘探压电检波器 

 

　　主要性能 

• 频率：5kHz（首峰） 
• 接收灵敏度：-192.5dB 
• 绝缘电阻：>10¹⁰Ω 
• 耐温：-40~70℃ 

 

　　（二）医疗与无损检测领域 

　　定量超声换能器 

 

　　主要性能 

• 频率：500kHz 
• Vpp：45~55 
• 一致性匹配数MN：-1~5 

 

　　（三）叠层压电驱动器 

　　主要性能 

• 规格：7×7×32 mm 
• 位移：37um 
• 电容：2uF