Dr. Tian-Bing Xu

Onsite NASA Langley address:
MS 226
Building 1293C, RM 153F
NASA Langley Research Center
6 West Taylor Street
Hampton, VA 23681

Tel: (757) 864-2072

Fax: (757)864-8312
Email: tbxu@nianet.org or Tian-Bing.Xu-1@nasa.gov

Research Interests

·       Multiscale and Multifunctional/Smart Materials and Structures for Aeronautics and Aerospace  in Various Environments:

ØProcessing and characterization of functional/multifunctional materials (piezoelectric, pyroelectric, electrostrictive, thermoelectronic, and piezoresistive materials) as well as high temperature materials and structures

ØInvestigation and development for smart electromechanical devices (MEMS, sensors, actuators, and acoustic and energy harvesting transducers, and fuel cell)

ØFunctional materials and structures in extreme environments, integration of  multifunctional material systems for green energy aircraft, intelligent propulsion systems, vibration and noise control, and energy systems

·       Multifunctional Composite Materials and Structures:

ØProcessing and characterization of high temperature composites and structures, nanocomposite materials, and elastic and/or dielectric tunable composites structures for NASA, military, and civil applications

ØIntegration of nondestructive evaluation (NDE) devices and composite structures for advanced aerospace structures as well as structural health monitoring

Current Research

·         Electroactive materials and structures(sensor, actuators, and transducers) for aeronautic and space applications

Ø  Piezoelectric energy harvesting transducers

Ø  High performance synthetic jet actuators

Ø  Multifunctional nanocomposites

Ø  Smart sensors

Ø  Thermal energy harvesting

Ø  Plasma actuators

·         Piezoelectric Cryogenic Actuators for Fluid Transfer control

Publications

·         Tian-Bing Xu, Nelson Guerreiro, James Hubbard, Jin Ho Kang, Cheol Park, and Joycelyn Harrison, “One-Dimensional Contact Mode Interdigitated Center of Pressure Sensor” Applied Physics Letters 94, 233503, 2009

·         Tian-Bing Xu, and Ji Su, “Development, Characterization, and Theoretical Evaluation of Electroactive Polymer-based Micropump Diaphragm,” Sensors and Actuators A: Physical, 121, pp. 267-274, 2005.

·         Dean M. Tigelaar, Daniel J. Klein, Tian-Bing Xu, Ji Su, and Robert G. Bryant, “Synthesis and Characterization of Poly(pyridinium triflate)s with Alkyl and Aromatic Spacer Groups for Potential Use as Nonlinear Optic Materials,” High Performance Polymers, 17 (4), pp. 515-531, 2005.

·         Tian-Bing Xu, and Ji Su, “Design, Modeling, Fabrication, and Performance of Bridge-Type High-Performance Electroactive Polymer Micromachined Actuators,” Journal of Microelectromechanical Systems, Vol. 14 (No. 3), pp. 539-547, 2005.

·         Tian-Bing Xu, and Ji Su, “Theoretical Modeling on Electroactive Polymer-Ceramic Hybrid Actuation Systems,” Journal of Applied Physics   97(3), 034908, 2005.

·         JI Su, Tian-Bing Xu, Shujun, Zhang, Thomas Shrourt, and QiMing Zhang, “An electroactive polymer-ceramic hybrid actuator systems for enhanced electromechanical performance,” Applied Physics Letters 85(6), pp. 1045-1047, 2004.

·         T.-B. Xu, Z.-Y. Cheng, and Q. M. Zhang, “High-performance micromachined unimorph actuators based on electrostrictive poly(vinylidede fluoride-trifluoroethylene) copolymer,” Applied Physics Letters 80 (6), pp. 1082-1084,  2002.

·         Z.-Y. Cheng, Vivek Bharti, T.-B. Xu, Haisheng Xu, T. Mai, and Q.M. Zhang, “Electrostrictive Poly(vinylidence Fluoride-Trifluoroenthylene) Copolymers,” Sensor & Actuators A: Physical 90, pp. 138-147,  2001.

·         T.-B. Xu, Z.-Y. Cheng, Q.M. Zhang, R.H. Baughman, C. Cui, A.A. Zakhidov, and J. Su, “Fabrication and characterization of three-dimensional periodic ferroelectric polymer-silica opal composites and inverse opal,” Journal of Applied Physics 88 (1), pp. 405-409, 2000.

·         Z.-Y. Cheng, T.-B. Xu, V. Bharti, Shexi Wang, and Q.M. Zhang, “Transverse strain responses in the electrostrictive poly(vinylidene fluoride-trifluorethylene) copolymer,” Applied Physics Letters 74 (13), pp. 1901-1903, 1999.

Issued Patents:

·         Tian-Bing Xu, Xiaoning Jiang, Ji Su, Paul W. Rehrig, and Wesley S. Hackenberger, “Hybrid Piezoelectric Energy Harvesting Transducer System,” U.S. Patent 7,446,459, November 2008.

·         J. Su, and T.-B. Xu, “Hybrid Electromechanical Actuator and Actuation System,” U.S. Patent 7,394,181, July 2008.

Selected U.S. Patent Applications:

·         Tian-Bing Xu, Xiaoning Jiang, and Ji Su, “Piezoelectric Multilayer-Stacked Hybrid Actuation/Transduction Systems,” U.S. patent application # 61,093,767 (provisional patent filed on 9/3/2008, U.S. no-provisional patent filed on 9/3/2009).

·         Ji Su, Tian-Bing Xu, and Ane Caprio, “Supra-nano-structured polymer-carbon composites for improved thermal stability and multifunctionality and the process,” U.S. and international provisional patent application # 60/939,161, filed on 5/21/2007.

·         Tian-Bing Xu, Xiaoning Jiang, and Ji Su, “Advanced High Performance Horizontal Piezoelectric Hybrid Synthetic Jet Actuator (ASJA-H),” U.S. patent application # 60/842,458 (provisional patent applications filed on 9/6/06. And no-provisional patent filed in January 2009).

·         Tian-Bing Xu, Xiaoning Jiang, and Ji Su, “Advanced High Performance Vertical Hybrid Electroactive Synthetic Jet Actuator (ASJA-V),” U.S. patent application # 60/842,459, (provisional patent applications filed on 9/6/06. And no-provisional patent filed in March 2009).

·         Tian-Bing Xu, Ji Su, and Xiaoning Jiang, “Advanced Modified High Performance Synthetic Jet Actuator with Optimized Curvature Shape Chamber (ASJA-M),” U.S. patent application # 60/842,686, (provisional patent applications filed on 9/6/06. And no-provisional patent filed in January 2009).

·         Xiaoning Jiang, Tian-Bing Xu, Ji Su, and Paul Rehring, “Advanced Electroactive Single Crystal and Polymer Actuator for Cryogenic Actuation,” U.S. and international provisional patent application # 60/872,915, filed on 12/5/06