Ounaies, Zoubeida Associate Professor Holder of the Aldridge Jr. '60 Career Development Professorship I Telephone: (979) 458-1330 Fax: (979) 845-6051 Email: zounaies@tamu.edu Webpage: http://www.electroactivematerials.com Mailing Address Texas A&M University Department of Aerospace Engineering 736B H.R. Bright Building 3141 TAMU College Station, TX 77843-3141

Currently Teaching
My Hours: By Appointment

Aero 213-Materials Science for Engineers

Aero 406- Polymer Nanocomposites and Their Applications

AERO/MEMA/MSEN 606- Multifunctional Materials

Education

The Pennsylvania State University, Mechanical Engineering, B.S.

The Pennsylvania State University, Mechanical Engineering, M.S.

The Pennsylvania State University, Engineering Sc. and Mech., Ph.D.

National Research Council, NASA LaRC, Material Sci and Eng, Postdoc

Areas of Interest

Active nanocomposites; Mechanical-electrical-chemical coupling phenomena in polymers and polymer nanocomposites; Dielectric properties of polymer nanocomposites; Processing and characterization of electroactive nanocomposites for sensing and actuation; Manipulation of electrokinetic interactions of micro-size and nano-size particles.

My research focus is on active nanocomposites. Since joining TAMU in 2005, I have established the Electroactive Materials Characterization Laboratory (EMCL), an experimental research facility dedicated to the processing and characterization of novel materials that combine structural integrity with the ability to sense or actuate in response to an electric field. Our goal is to design engineered materials with specially tailored performance by probing the link between control of nanoparticle distribution, and resulting properties and performance. Through controlled dispersion of nanoparticles such as ceramic nanopowders and carbon nanotubes, we have shown that property enhancements are not limited to mechanical and electrical responses. More recently, we have developed a methodology to manipulate and pattern nanotubes and nanofibers in polymers using electrokinetic interactions, with dramatic changes in electrical and stress coupling.

Publications and Papers

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2004	Ounaies, Z., Park, C., Harrison, J.S. Electrical and Mechanical Characterization of Carbon Nanotube-Polyimide Composites, submitted to Journal of Intelligent Systems and Structures-2004.
2004	Ounaies, Z. and Harrison, J. S. An Investigation of Piezoelectricity of a Nitrile-Substituted Polyimide. (Under review. Smart Materials and Structures, 2004.)
2003	Ounaies, Z., Park, C., Wise, K. E., Siochi, E., and Harrison, J. S. (2003). Electrical Properties of Single Wall Carbon Nanotube Reinforced Polyimide Composites. Composites Science and Technology, 63 (11) pp.1637-1646.
2003	Smith, R., Seelecke, S., Ounaies, Z., and Smith, J. (2003). A Free Energy Model for Hysteresis in Ferroelectric Materials. Journal of Intelligent Systems and Structures, 14 (11) pp. 719-739.
2003	Atkinson, G.M., Pearson, R.E., Ounaies, Z., Park, C., Harrison, J. S., Dogan, S., and Midkiff, J. A. (2003). Novel Piezoelectric MEMS. Transducers Proceedings. (Accepted for publication).
2003	Ambur, D. R., Harik V. M., Ounaies, Z., Hasanyan, D., and Librescu, L. (2003). Modeling The Structural Response Of Multifunctional Materials: The In-Field Vibration Of A Thin Plate. 44th Structures, Structural Dynamics, and Materials (SDM) Conference-AIAA, April.
2003	Pawlowski, K. J., St. Clair, T. L., McReynolds, A. C., Park, C., Ounaies, Z., Siochi, E. J., Harrison, J. S. (2003). Electrospun Electroactive Polymers For Aerospace Applications. 44th Structures, Structural Dynamics, and Materials (SDM) Conference-AIAA, April.
2003	Ounaies, Z., Barnes, C., Park, C., Harrison, J.S., Lillehei, P.T. Electrical and Mechanical Characterization of Polyimide-Carbon Nanotube Nanocomposites, IMECE/ASME International Mechanical Engineering Congress and R&D Expo, 2003.
2003	Park, C., Wise, K E., Ounaies, Z., Lillehei, P.T., Siochi, E.J., Harrison, J.S. Evaluation of Dispersion of SWNT in Nanocomposites. Purity and Dispersion Measurement Issues Workshop on Single-Wall Carbon Nanotubes. NASA-NIST. Note: proceedings published in the Journal of Nanoscience and Nanotechnology. 2003
2003	Ounaies, Z., Park, C., Harrison, J., and Klein, D. (2003). Electrical and mechanical characterization of polyimides and polyimide nanocomposites.SPIE: Smart Structures and Materials Conference, Active Materials Symposium, San Diego, CA.
2003	McLachlan, D.S., Chiteme, C., Park, C., Wise, K.E., Ounaies, Z., Lowther, S.E., Lillehei, P.T., Siochi, E.J., Harrison, J.S.. Percolative Conductivity and Impedance Spectroscopy of SWNT Polymer Composites. ICCE, 2003.
2003	Ball, B. L., Smith, R. C., and Ounaies, Z. (2003). “A Dynamic Hysteresis Model For THUNDER Transducers”, SPIE: Smart Structures and Materials Conference, Mathematics Symposium, San Diego, CA.
2003	Banda, S., Ounaies, Z., Park, C., and Wilkinson, J. (2003). “Characterization of Aligned carbon nanotube polymer composites.” Virginia Academy of Science. Charlottesville, VA.
2003	Barnes, C. P., Ounaies, Z., Bates, D., and Wnek, G. E. (2003). “PVDF: The Perfect Polymer for Piezoelectric Performance in People?” Virginia Academy of Science. Charlottesville, VA.
2003	Callahan, D. M., Rud, J. A., and Ounaies, Z. and St. Clair, T. (2003). “Timid About Polyimide? An In Depth Look at an Electroactive Polyimide and Its Aerospace Application.” Virginia Academy of Science. Charlottesville, VA.
2003	Mossi, K., Ounaies, Z., Smith, R., and Ball, B. (2003). “Pre-stressed Curved Actuators: Characterization and Modeling of their Piezoelectric Behavior.” SPIE: Smart Structures and Materials Conference, Active Materials Symposium, March 2003, San Diego CA.
2003	Smith, R. C., Seelecke, S., Dapino, M., and Ounaies, Z. (2003). A Unified Model for Hysteresis in Ferroic Materials, SPIE: Smart Structures and Materials Conference, Mathematics Symposium, San Diego, CA.
2002	Park, C., Ounaies, Z., Watson A. K., Crooks, R. E.; Smith, Jr., J., Lowther, S., Connell, J., Siochi, E., Harrison, J. S., and St. Clair, T. L. (2002). Dispersion of Single Wall Carbon Nanotubes by In-Situ Polymerization Under Sonication. Chemical Physics Letters, 364 (3 - 4) pp. 303-308.
2002	Ounaies, Z. And Smith, R. (2002) Model Development for High Performance Piezoelectric Polymers. Materials Research Society Symposia Proceedings. 698 pp. 217-226.
2002	Park, C., Wise, K. E., Ounaies, Z., Crooks, R. E., Working, D. C., Lowther, S. E., Lillihei, P. T., Siochi, E. J., and Harrison, J. S. (2002). Synthesis, Processing, And Physical Properties Of Single Wall Carbon Nanotube Reinforced Polymer Nanocomposites. Materials Research Society Symposium. Boston, MA.
2002	Park, C., Wise, K. E., Ounaies, Z., Lowther, S. E., Lillehei, P., Siochi, E. J., and Harrison, J. S., (2002). Electrical and Dielectric Properties of Single Wall Carbon Nanotube Polymer Nanocomposites. American Physics Society Meeting. Houston, TX.
2001	Pramod K Sharma, Z Ounaies, V V Varadan and V K Varadan (2001). Dielectric and piezoelectric properties of microwave sintered PZT. Smart Mater. Struct., 10 pp.878-883.
2001	Park, C., Ounaies, Z., Watson, K., Connell, J., Siochi, E. J., and Harrison, J.S. (2001) Polymer-Single Wall Carbon Nanotube Composites for Potential Spacecraft Applications. Materials Research Society Symposia Proceedings. 706, pp. 91-96.
2000	Smith R. C. and Ounaies, Z. (2000). A Domain Wall Model for Hysteresis in Piezoelectric Materials. Journal of Intelligent Material Systems and Structures 11, no.1, p.62.
2000	Smith, R. C. and Ounaies, Z. (2000). A Model for Asymmetric Hysteresis in Piezoceramic Materials. In Wun-Fogle, M., Uchino, K., Ito, Y., and Gotthardt, R. (Eds.) Materials Research Society Symposium Proceedings: Volume 604, p.285.
2000	Park, C., Ounaies, Z., Su, J., Smith, Jr., J.G., and Harrison, J.S. (2000). Polarization Stability of Amorphous Piezoelectric Polyimides, In Zhang, Q. M., Furukawa, T., Bar-Cohen, Y., and Scheinbeim, J. (Eds.), Materials Research Society symposia proceedings. 600 pp. 153-158.
2000	Su, J., Ounaies, Z., and Harrison, J. S. (2000). Ferroelectric and Piezoelectric Properties of Blends of Poly(vinylidene-trifluoroethylene) and Graft Elastomer. In Zhang, Q.M., Furukawa, T., Bar-Cohen, Y., and Scheinbeim, J. (Eds.), Materials Research Society Proceedings: Electroactive Polymers Volume 600 pp.95-1000.
2000	Smith, R. C., Ounaies, Z., and Wieman, R. (2000). A Model for Rate­Dependent Hysteresis in Piezoceramic Materials Operating at Low Frequencies. In Varadan, V. V. (Ed.) SPIE Proceedings, Smart Structures and Materials: Mathematics and Control in Smart Structures - Volume 3984. Newport Beach, CA.
2000	Su, J., Ounaies, Z., Harrison, J. S., Bar-Cohen, Y. and Leary, S. (2000). Electromechanically Active Polymer Blends for Actuation. In Bar-Cohen, Y. (Ed.) SPIE Proceedings, Smart Structures and Materials: Electroactive Polymer Actuators and Devices– Volume 3987. Newport Beach, CA.
1999	Ounaies, Z., Young, J. A., and Simpson, J. O. (1999). An Overview of the Piezoelectric Phenomenon in Amorphous Polymers. ACS symposium series. 726, p.88-103.
1999	Simpson, J., Ounaies, Z., and Young, J. (1999). Mechanisms of piezoelectricity in amorphous and semicrystalline polymers. American Chemical Society POLY Part 2 pp.214: 222.
1999	Smith, R. C. and Ounaies, Z. (1999). A Hysteresis Model for Piezoceramic Materials. Proceedings of the 1999 Winter International Annual Meeting of the ASME, 14-19 Nov. Nashville, TN.
1999	Jordan, T., Ounaies, Z., Tripp, J., and Tcheng, P. (1999). Electrical Properties and Power Considerations of a Piezoelectric Actuator. In Wun-Fogle, M., Uchino, K., Ito, K., and Gotthardt, R. (Eds.) Materials Research Society Proceedings: Materials for Smart Systems III, Volume 604.
1999	Ounaies, Z., Park, C., Harrison, J. S., Smith, J. G., and Hinkley, J. (1999). Structure-Property Study of Piezoelectricity in Polyimides. In Bar-Cohen, Y. (Ed.) SPIE Proceedings, Electroactive Polymer Actuators and Devices - Volume 3669, p.171. Newport Beach, CA.
1998	Ounaies, Z. (1998). Piezoelectric Materials for Advanced Aircraft Applications. Tunisian Science, December Issue. p24.
1997	Jordan, T. L., Ounaies, Z., Turner, T. L. (1997). Complex Piezoelectric Coefficients of PZT Ceramics: Method for Direct Measurements of d33. In George, E. P., Gotthardt, R., Otsuka, K., Trolier-McKinstry, S., and Wun-Fogle, M., (Eds.) Materials Research Society Proceedings: Materials for Smart Systems II Volume 459, p.231.
1997	Ounaies, Z., Young, J. A., Simpson, J. O., and Farmer, B. L. (1997). Dielectric Properties of Piezoelectric Polyimides. In George, E. P., Gotthardt, R., Otsuka, K., Trolier-McKinstry, S., and Wun-Fogle, M., (Eds.) Materials Research Society Proceedings: Materials for Smart Systems II Volume 459, p.59.
1997	Simpson, J., Ounaies, Z., and Fay, C. (1997). Polarization and Piezoelectric Properties of a Nitrile Substituted Polyimide. In George, E. P., Gotthardt, R., Otsuka, K., Trolier-McKinstry, S., and Wun-Fogle, M. (Eds.) Materials Research society Proceedings: Materials for Smart Systems II Volume 459, p.53.
1994	Bao, X. Q., Ounaies, Z., Varadan, V. K. and Varadan, V. V. (1994). Active Noise Control Using a Piezoelectric Actuator for a Machine. SPIE Proceedings, Smart Structures and Materials, p. 211. Orlando, FL.
1994	Ounaies, Z., Varadan, V. K., and Varadan, V . V. (1994). Sol-gel and Microwave Processing of PZT Materials for Sensor and Actuator Applications. SPIE Proceedings, Smart Structures and Materials, p. 413. Orlando, FL.
1994	Varadan, V. K., Varadan, V. V. , Selmi, F., Ounaies, Z. and Jose, K. A. (1994). Multilayer Tunable Ferroelectric Materials and Thin Films. SPIE Proceedings, Smart Structures and Materials, p. 433. Orlando, FL.
1993	Ounaies, Z., Selmi, F., Varadan, V. K., Varadan, V. V., and Megheri, M. (1993). Microwave Calcining of Conventionally and Sol-Gel Prepared Lead Zirconate Titanate. Materials Letters 17, pp.13-24.