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个人简介

董蜀湘 北京大学工学院先进材料与纳米技术系 特聘研究员、教授; 美国弗吉尼亚理工大学兼职教授 教育经历: 1982年获武汉大学半导体物理学士学位 1989年获清华大学固体物理理学硕士学位 1993年获清华大学材料科学与工程工学博士学位 研究背景: 理论方面 1.在磁电叠层复合材料理论研究中,创立磁场-弹-电场耦合等效电路方法和理论模型,侧重于磁场-电场的动态,特别是谐振耦合。是目前磁电复合材料中主要三种理论方法之一. 推导出考虑尺寸效应的磁电耦合系数表达式; 2.提出谐振声场扰动机理用于目标定位; 提出剪切-弯变模式的压电行波激发和驱动方法;建立压电/金属复合板的平面压电方程,发展出最简洁的解析公式用于压电园板位移-负载关系的精确计算。 实验方面 A.压电器件 1. 世界上最小的压电微马; 该成果获美国宾州大学材料进步一等奖(First Place Prize in Material Advances in MRL, The Pennsylvania State University on Dec., 2000); 论文发表在“IEEE Trans. On Ultrasonics, Ferroelectrics and Frequency Control, Vol.50, No.4, 2003”。 2. 发展了极低温(空间)线性和旋转型压电单晶超声步进电机; 该成果发表在Applied Physics Letters, Vol.86, no.5, pp053501, 2005; Vol.92, no.15, pp153504, 2008。 3.发现谐振声场扰动方法及机理可用于目标声学定位; 该成果发表在 (i) Applied Physics Letters, Vol.82, no.23, pp4181, 2003; (ii) Review of Scientific Instruments, vol.74, no.23, pp4863, 2003 4.提出压电声谐振腔和智能皮肤方法用于氢气泄漏的主动式监测; 该成果发表在 (i) Applied Physics Letters, Vol.82, no.25, pp4590, 2003; (ii) IEEE Trans. On Ultrasonics, Ferroelectrics and Frequency Control, Vol.50, No.9, pp1105, 2003;(iii) Applied Physics Letters, Vol.84, no.21, pp4153, 2004。 该传感器成功的用于美国能源部氦气和氩气等气体快速在线监测; 5.提出压电剪切模式的超声行波激发方法用于压电马达的驱动; 该成果发表在IEEE Trans. On Ultrasonics, Ferroelectrics and Frequency Control, Vol.51, No.10, pp1240, 2004. 6. 提出环形大位移压电致动器的概念( piezoelectric ring-morph actuator); 该成果优于美国宾州大学近年发展的“Cymbal” or “Mooni”概念。该成果发表在 (i) Journal of Intelligent Material Systems and Structures, Vol12, No.9, 2001, (ii) Journal of Electroceramics, vol.8, no.2, pp155, 2002. 7.提出和发展了一种压电效应-电流变效应结合的步进马达; 该成果发表在IEEE on Component Packaging, and Manufacturing Technology, Part A, Vol.18, No.2, 1995。 8. 空间用压电变压器优化理论研究; 9. 用于光学镜头自动调焦的毫米量级微马达; 10. 智能可调控电感等电子器件。 B. 磁电材料和器件 1. 发现磁、压电复合材料的磁场灵敏度可由10-12 Tesla提高到10-13 Tesla; 该成果发表在Advanced Materials, Vol.29, no.19, pp1606022, 2017. 原灵敏度为10-12 Tesla的成果发表在Applied Physics Letters, Vol. 83, no.11, pp2265, 2003. 该成果被其它文章多次介绍和引用。 2. 设计了(1-1)型一维磁电复合结构,可产生磁通聚集增强效应,使研制的磁电复合材料的谐振磁电耦合系数提高了7倍; 该成果发表在Advanced Materials, Vol.29, no.19, pp1606022, 2017. 3. 发现磁、压电复合材料(Terfenol-D/PZT)具有超高的电压增益效应; 该成果发表在 Applied Physics Letters, Vol. 85, no.14, 2004; 4. 发现磁电复合材料的gyration效应; 该成果发表在Applied Physics Letters, Vol. 89, no.24, 2006。 5. 发展了系列压电、磁电双机理微能量回收器,单个单元的输出功率和输出电流分别达到了mW和mA量级,为同类研究报道的最好水平。 发表文章和专利 在国际重要刊物上发表SCI文章160篇; SCI引用次数8700余次;拥有4项美国发明专利和30多项中国发明专利。曾获美国宾州大学2000年材料科学进步一等奖,2014-2017连续4年被Elsevier 评选为中国高被引学者(Most Cited Chinese Researchers)——入选者被认为是来自中国社会科学、物理、化学、数学、经济等38学科最具世界影响力的中国学者之一。

研究领域

涉及压电材料、磁电复合材料、器件、应用及理论,包括磁-弹-电耦合理论,纳米压电马达和压电致动器,压电微机电系统,换能器,磁传感器,磁电和压电微能源回与收采集器,3D打印系统和压电铁电器件的先进制备,以及在微电子、生物医学和其它工程中的应用研究。

近期论文

查看导师新发文章 (温馨提示:请注意重名现象,建议点开原文通过作者单位确认)

Yuan X, Gao X, Yang J, et al. The large piezoelectricity and high power density of a 3D-printed multilayer copolymer in a rugby ball-structured mechanical energy harvester[J]. Energy & Environmental Science, 2020, 13 (1):152-161. Gao X, Li Z, Wu J, et al. A Piezoelectric and Electromagnetic Dual Mechanism Multimodal Linear Actuator for Generating Macro- and Nanomotion[J]. Research, 2019, 2019: 8232097 Yang J, Li Z, Xin X, et al. Designing electromechanical metamaterial with full nonzero piezoelectric coefficients[J]. Science Advances, 2019, 5: eaax1782 PourhosseiniAsl M J, Chu Z, Gao X, et al. A hexagonal-framed magnetoelectric composite for magnetic vector measurement[J]. Applied Physics Letters, 2018, 113(9): 092902. Gao X, Wu J, Yu Y, et al. Giant Piezoelectric Coefficients in Relaxor Piezoelectric Ceramic PNN‐PZT for Vibration Energy Harvesting[J] Advanced Functional Materials, 2018: 1706895. Gao X, Xin X, Wu J, et al. A multilayered-cylindrical piezoelectric shear actuator operating in shear (d15) mode[J]. Applied Physics Letters, 2018, 112(15): 152902. Chu Z, Shi H, Shi W, et al. Enhanced Resonance Magnetoelectric Coupling in (1‐1) Connectivity Composites[J].Advanced Materials, 2017, 29(19): 1606022. Gao X, Wu J, Yu Y, et al. A modified barbell-shaped PNN-PZT-PIN piezoelectric ceramic energy harvester[J]. Applied Physics Letters, 2017, 111(21): 212904. Wu J, Chen X, Chu Z, et al. A barbell-shaped high-temperature piezoelectric vibration energy harvester based on BiScO3-PbTiO3 ceramic[J]. Applied Physics Letters, 2016, 109(17):8. Wu J, Shi H, Zhao T, et al. High-Temperature BiScO3-PbTiO3 Piezoelectric Vibration Energy Harvester[J]. Advanced Functional Materials, 2016, 26(39):7186-7194.

学术兼职

PROFESSIONAL SOCIETY ACTIVITY: 1. Invited speakers: (1) Invited talk at IEEE- ISAF 2008 at Eldorado Hotel, Santa Fe, New Mexico, Feb. 25, 2008; (2) Invited speaker at ICAT 50th Smart Actuator Symposium, held on October 9-10, 2007, Penn State University. (3) Invited speaker at 2005 Spring Meeting of Materials Research Society, March 28-April 1, San Francisco, CA, USA. (4) Invited speaker at 44th ICAT Smart Actuator Symposium, April 6&7, 2005, Penn State University. (5). Invited speaker at Electrical and Computer Engineering,Wayne State University, April, 2005. (6) Invited speaker at Applied Physics, Hong Kong Polytechnic University, June, 2005. (7) Invited speaker at Materials Science & Engineering, Tsinghua University, July, 2005 (8). Invited speaker at Electrical and Computer Engineering,Nanjing University, Sept., 2004. (9) Invited speaker at Aerospace and Mechanical Engineering, University of Southern California, July, 2000 2 IEEE Member, Materials Research Society (MRS) member and Member of American Ceramic Society 3 Journal Reviewer for • Physics Reviews B • Applied Physics Letter/Journal of Applied Physics • Journal of Materials Research • Journal of Electroceramics • IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control • Sensors & Actuators, Physics, A

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