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Creator:: Patterson, Eric Andrew
Abstract:: Much recent research has focused on the development lead-free perovskite piezoelectrics as environmentally compatible alternatives to lead zirconate titanate (PZT). Two main categories of lead free perovskite piezoelectric ceramic systems were investigated as potential replacements to lead zirconate titanate (PZT) for actuator devices. First, solid solutions based on Li, Ta,...
Resource Type:: Dissertation
Full Text:: agglomerate capture range within a cylinder grain with dimensionsd, h= "g" [25}. ........... 32 Fig. 2.12

Creator:: Gupta, Sanu K.
Abstract:: It has been well established that ferroelectric to relaxor crossover in piezoelectric ceramics exhibit promising electromechanical and dielectric properties over a wide temperature range, applying sensors and actuators transducers and such. A plethora of research has reported giant strain in various lead-free piezoelectric ceramics and attributed the reasoning to the...
Resource Type:: Dissertation
Full Text:: , Dr. John F. Conley, and Dr. Frank J. Tepley for serving as committee members. Special thanks to Dr

Creator:: Kwon, Seunghwa
Abstract:: Since its discovery, the anomalous dielectric behavior of CaCu₃Ti₄O₁₂ (CCTO) has drawn a great deal of attention for many possible applications in electronic devices. The origin of the giant dielectric constant in CCTO was explained via an internal barrier layer capacitor model, and it has been reported that the dielectric...
Resource Type:: Dissertation
Full Text:: 100 h annealed CCTO (after quenching)........................ 93 6.13. TG/DTA plot of the

Creator:: Ansell, Troy Youngmin
Abstract:: Lead zirconate titanate (PZT) is the dominant ferroelectric material in the market due to its excellent piezoelectric properties, relatively high Curie transition temperature (T[subscript C]), low cost, etc. However, because of emerging applications with requirements for high temperature (T[subscript C] > 400 °C) ferroelectrics, researchers are increasingly looking at alternative...
Resource Type:: Dissertation
Full Text:: loss. Reprinted, with permission, from A. J. Moulson and J. M. Herbert; Electroceramics: Materials

Creator:: Triamnak, Narit
Abstract:: Relaxor characteristic of the solid solution (1-x)BaTiO₃-(x)Bi(Zn₁/₂Ti₁/₂)O₃ (BTBZT) was investigated in this research. X-ray diffraction technique and Raman spectroscopy revealed the crystal structure of BT-BZT at various compositions. For compositions with x ≤ 0.08, the solid solutions exhibited clear tetragonal symmetry and transitioned to pseudo-cubic symmetry as the content of...
Resource Type:: Dissertation
Full Text:: +. I would like to thank Dr. William H. Warnes and Dr. Brady J. Gibbons for providing generous

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