学术活动发布与订制系统

In any material, the defects can strongly perturb the properties, either electrical or mechanical. Point defects in ferroelectric materials are very important and often control performance and device limitations of capacitors and piezoelectrics. As we look forward into the future, the applications pulls on ferroelectric and dielectric material will demand higher electric fields and higher temperatures. Here we will discuss new insights into oxygen vacancy behavior in perovskite-based dielectrics. First, we will consider the defects that are established under equilibrium conditions that can be quenched in and are determined by partial Schottky reactions. Second, we will consider defect complexes that are resulting from acceptor and acceptor-donor pairs in the formulation. Third, we will consider the degradation process in multilayer ceramic capacitors and a new equation that predicts meantime to fail. Finally, we consider ferroelectric materials with very high oxygen vacancy concentrations and consider ferroelectrics under the universality of the Mott Criterion.

Clive Alan Randall

N-221 Millennium Science Complex

The Pennsylvania State University

University Park, PA 16802, USA

1-814-863-1328

car4@psu.edu

Professional Preparation

University of East Anglia, UK Physics B.Sc. (First class honors),1983

University of Essex, UK Experimental Physics Ph.D., 1987

Plessey Corporation, UK Postdoctoral, 1986-1987

Bell Communications Research Growth/characterization of

ferroelectric crystal fibers Postdoctoral, 1987-1988

Appointments

1999–present Professor, Material Science and Engineering

1997–present Director, Center for Dielectric Studies

2004–2005 Visiting Fellow, Fitzwilliam College, University of Cambridge, U.K.

Summer 2002 Visiting Scientist, University of Sheffield, UK

Summer 1999 Visiting Scientist, EPFL, Laussane, Switzerland

1995-1999 Associate Professor of Ceramic Science and Engineering

1994 Visiting Scientist, Shonan Institute of Technology, Fujisawa, Japan

1992-1995 Senior Research Associate, Materials Research Laboratory, Penn State

1987-1992 Research Associate, Materials Research Laboratory, Penn State

Synergistic Activities

1. Symposium organizer, Electronic Materials and Applications 2011 (American Ceramic Society), Orlando, Florida, January 19-21, 2011.

2. Symposium organizer, 3^rd International Congress on Ceramics, Osaka, Japan, November 14-19, 2010.

3. General Chair, 13^th US-Japan Seminar on Dielectric and Piezoelectric Ceramics, 2007.

4. Symposium chair, American Ceramic Society 31^st International Cocoa Beach Conference, Exposition on Advanced Ceramics and Composites, Daytona Beach, Florida, 2007 and 2009.

5. Symposium chair, IMAPS/American Ceramic Society 3^rd International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies (CICMT), Denver, CO, 2007.

6. Technical Co-chair, 12^th US-Japan Seminar on Dielectric and Piezoelectric Ceramics, 2005

7. Symposium Co-chair, American Ceramic Society Meeting, Cocoa Beach, 2004 and 2002

8. Symposium Co-chair, Materials Research Society Fall Meeting, Microwave Materials and Packaging Symposium, 2003 and 2004

9. Associate Editor, J. Am. Ceram. Soc., 1996–present

Honors and Awards

1. Friedberg Lecturer, American Ceramic Society (2011)

2. Ferroelectric Materials and Applications International Award, Japan (2011)

3. Faculty Scholar Medal (Engineering), Penn State University (2009)

4. Spriggs Phase Equilibria Award, American Ceramic Society (2008)

5. R&D 100 Award (2007)

6. Academician, World Academy of Ceramics (2006).

7. Visiting Fellow of Fitzwilliam College, University of Cambridge (2005).

8. Fellow American Ceramic Society (2005).

9. Wilson Research Award (College of Earth and Mineral Science), The Pennsylvania State University (2003).

10. Fulrath Award — American Ceramic Society (2002)

11. Wilson Teaching Award (Best Teacher in College of Earth and Mineral Science), The Pennsylvania State University (1998)