简介: |
摘要: Dielectrics are the key materials for all IC circuits, electronic packages, and energy storage devices. To develop new dielectrics with unique properties for different applications, 0-3 composites, especially polymer-based dielectric 0-3 composites, have been extensively studied in recent years. In this talk, some applications will be discussed first to promote the materials development. The recent developments in dielectric 0-3 composites including materials and fabrication processes are presented along with the challenges for further developments. Finally, the physics behind the properties of dielectric composites is presented. The shortcomings of current understandings are discussed along new experimental results.
BIOGRAPHICAL SKETCH (a). Professional Preparation Xian Jiaotong University, China Physics B.S. (1983) Xian Jiaotong University, China Electronic Materials and Components M.S. (1988) Xian Jiaotong University, China Electronic Engineering Ph.D (1995) Pennsylvania State University, Pennsylvania Electroactive Polymers 03/98-12/99 University of Puerto Rico, Puerto Rico Smart Materials 05/96-02/98 (b). Appointments 08/11-present Professor, Materials Engineering, Auburn University, Auburn, AL 01/05-present Assistant Director, Auburn University Detection and FoodSafetyCenter 08/07-08/11 Associate Professor, Materials Engineering, AuburnUniversity, Auburn, AL. 08/02-08/07 Assistant Professor, Materials Engineering, Auburn University, Auburn, AL. 01/00-07/02 Research Associate, PennsylvaniaStateUniversity, University Park, PA 05/95-05/96 Visiting Scientist, Heinrich-Hertz-Institute, Berlin, D-10587, Germany 07/88-05/95 Assistant Professor, XianJiaotongUniversity, Xian, China (c). (i) Publications Relevant to this proposal 1. L. Zhang, P.W. Wu, Y.T. Li, Z.-Y. Cheng, and J.C. Brewer, “Preparation process and dielectric properties of Ba0.5Sr0.5TiO3 – P(VDF-CTFE) nanocomposites,” Composites Part B: Engineering, Vol. 56, 284-289 (2014). 2. L. Zhang, P. Bass, Z.-Y. Cheng, “Physical aspects of 0-3 dielectric composites,” Journal of Advanced Dielectrics, Vol 5(2), 1550012 (2015). 3. Z.-Y. Cheng and Q.M. Zhang, “Field Actuated Electroactive Polymers,” MRS (Materials Research Society) Bulletin 3(3), 183-187 (2008). 4. Z.M. Li, Y.H. Wang, and Z.-Y. Cheng, “Electromechanical Properties of Poly(vinylidene-fluoride-chlorotrifluoroethylene) Copolymer,” Applied Physics Letters 88, 062904 (2006). 5. C. Huang, R. Klein, F. Xia, H. Li, Q.M. Zhang, F. Bauer, and Z.-Y. Cheng, “Poly(vinylidene fluoride-trifluoroethylene) based High Performance Electroactive Polymers,” IEEE Transactions on Dielectrics and Electrical Insulation 11(2), 299-311 (2004). (ii) Other significant publications (>100 articles in peer-reviewed journals and >100 in proceedings) 1. Q.M. Zhang, H.Li, M. Poh, F.Xia, Z.-Y. Cheng, H.Xu, and C. Huang, “An All-Organic Composite Actuator Material with a High Dielectric Constant”, Nature419, pp.284-287 (2002). 2. M. Arbatti, Xiaobing Shan, and Z.-Y. Cheng, “Novel Ceramic-Polymer Composites with High Dielectric Constant,” Advanced Materials 19, 1369-1372 (2007). 3. L. Zhang, P. Bass, Z.-Y. Cheng, “Physical aspects of 0-3 dielectric composites,” Journal of Advanced Dielectrics, Vol 5(2), 1550012 (2015). 4. L. Zhang, P. Bass, Z.-Y. Cheng, “Revisiting the percolation phenomena in dielectric composites with conducting fillers,” Applied Physics Letters 105, 042905 (2014). 5. Z.–Y. Cheng, R. S. Katiyar, X. Yao, and A. S. Bhalla, "Temperature Dependence of Dielectric Constant of Relaxor Ferroelectrics", Physical Review B57, 8166 (1998). (d). Synergistic Activities • Faculty Research Award, Auburn Alumni Engineering Council, 2007; 3M Faculty Award, 2005-2008. • Symposium Organizer: MRS Full Meeting on Polymer based Smart Materials (2005, 2006, 2008, and 2010) • Conference Chairs: Micro(MEMS) and Nanotechnology for Defense and Security, SPIE Symposium on Defense and Security (2006, 2007, and 2008); Adaptive, Active and Multifunctional Smart Materials Systems, CIMTEC (International Conferences on Modern Materials and Technologies) 2012. • Member of International Advisory Board: Electroactive Polymers: Advances in Materials and Devices, CIMTEC 2016, CIMTEC 2012; CIMTEC 2008); Semiconducting & Insulating Materials Conference (SIMC) XIV (2007); First World Congress on Biomimetics and Artificial Muscles (2003); SPIE Defense & Security Executive Committee member, SPIE (2006 -2008). • Member of Editorial Board: Journal of Advanced Dielectrics (2010-); Metallurgical and Materials Transactions(2002-); Scientific Journals International (2006-2009); The American Editor: Journal of Advanced Physics (2014-)
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