Instructor: T.R. (Raj) Gururaja, Hewlett Packard Company, Andover, MA
This tutorial will provide a broad overview of piezoelectric materials with a special emphasis on applications. The first part of the course will consist of definition of piezoelectric properties, symmetry consideration for piezoelectric effect, anisotropy and tensor notation, and matrices of elastic, piezoelectric, and dielectric properties. The course will then extend to reviewing structure-property relation in piezoelectric materials. The second part consists of measurement techniques to characterize electromechanical properties, both at low and high frequencies. This will be based on procedures recommended by IEEE standards. The third part of the course will include discussion on recent developments in piezoelectric materials such as piezocomposites, piezoelectric polymers, and electrostrictive materials and their benefits for specific applications. The course will be directed towards practicing engineers and researchers in the field of piezoelectric material and its applications.
T.R. (Raj) Gururaja is a Principal Scientist/Project Leader in R&D at the imaging Systems Division of Hewlett Packard Company in Andover, MA. He received his B.Sc and M.Sc degree in Physics from the University of Mysore, India, in 1974 and 1976, respectively. He received his M.Tech Degree in Materials Science from the Indian Institute of Technology, Kanpur, India and Ph.D degree in Solid State Science from the Pennsylvania State University in 1984. He worked as a research associate at the Pennsylvania State University from 1984 to 1987. He joined Hewlett-Packard in Andover, MA as a Transducer Design Engineer in 1987. He received 1985 best paper award for the papers on "Piezoelectric Composite Materials for Ultrasonic Transducer Applications, Part I and II" published in the IEEE Transactions on Sonics and Ultrasonics. His recent research activities have been in the area of piezoelectric ceramics and composite materials and ultrasonic transducers for medical imaging.
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