Index Catalog // ScholarsArchive@OSU

Creator:: Kearney, Dylan R.
Abstract:: Lead zirconate titanate (PZT) is well known to exhibit some of the strongest piezoelectric responses, explaining why it is at the heart of piezoelectric-based microelectromechanical systems (MEMS) research. The use of pulsed laser deposition (PLD) to synthesize PZT offers many advantages over alternative deposition techniques, mainly regarding its ability to...
Resource Type:: Honors College Thesis
Full Text:: ] ....................................................................................................................... 11 Figure 9: Example hysteresis loop with remanent polarization (Pr) and coercive field (Ec

Creator:: Walenza-Slabe, Joel
Abstract:: Pb(Zr₀.₅₂Ti₀.₄₈)O₃ (PZT) thin films are of interest for their large dielectric permittivity, ferroelectric, and piezoelectric properties. The material has been widely studied for use in high frequency transducers, multi-layered capacitors, and ferroelectric random access memory. Copper foils are an inexpensive, flexible substrate with a low resistivity which makes them ideal...
Resource Type:: Masters Thesis
Full Text:: for the films from Figure 4.21. Ec for the 990 nm thick film crystallized at 650°C would not fit on

Creator:: Emerson, Morgan Rose
Abstract:: Electrical energy storage devices are currently the main limiting factor in many electrical devices and with the increasing demands placed on electrical power over fossil fuels, high energy density materials are essential. Previous research by Huang et al. on bulk (1-x)Bi(Zn₁/₂Ti₁/₂)O₃-xABO₃ solid solution systems led to the discovery of an...
Resource Type:: Masters Thesis
Full Text:: temperatures (a) 575°C (b) 600 °C (c) 650 °C (d) 700 °C and at 50 mTorr: (e) 575 °C (f) 600 °C (g) 650 °C and

Creator:: Jeon, Yu Hong
Abstract:: Piezoelectric materials have been widely used in electromechanical actuators, sensors, and ultrasonic transducers. Among these materials, lead zirconate titanate Pb(Zr[subscript 1‐x]Ti[subscript x])O₃ (PZT) has been primarily investigated due to its excellent piezoelectric properties. However, environmental concerns due to the toxicity of PbO have led to investigations into alternative materials systems....
Resource Type:: Dissertation
Full Text::  at different temperature. The insets show Pr and Ec as a               fuction of the electric field

Creator:: Mason, Ashley D.
Abstract:: Piezoelectric materials convert mechanical strain into a dielectric displacement, as well as the converse, allowing these materials to be used as sensors, actuators, and transducers. Currently, lead zirconate titanate (PZT) is the primary material used in these applications. Due to environmental toxicity and safety concerns associated with Pb, development of...
Resource Type:: Dissertation
Full Text:: . . . . . . . 72 5.9 Summary plots of (a) Pmax, (b) EC , (c) Pr, and (d) d33,f,ls as a function of cycles for BNT

Creator:: Shelton, Christopher T.
Abstract:: The lead-zirconate-titanate (PZT) solid solution system is currently the workhorse of piezoelectric-based microelectromechanical systems (MEMS) research. Among bulk materials it is known to be one of the strongest piezoelectrics, with extremely high piezoelectric coefficients and electro-mechanical coupling factors. Reproducing these exceptional qualities in thin film form, however, requires precise tuning...
Resource Type:: Masters Thesis
Full Text:: loop for ferroelectric (a) and anti-ferroelectric (b) material with Pr (remnant polarization) and Ec

Creator:: Fox, Austin J.
Abstract:: This work explores the electric field induced strain mechanisms in environmentally benign Bi0.5Na0.5TiO3 (BNT) based piezoelectric thin films. Although BNT-based materials show promise as replacements for toxic Pb-based piezoelectrics, the displacement mechanisms are not consistent between thin films and bulk materials, and the differences have yet to be well understood....
Resource Type:: Dissertation

Creator:: Grove, Kyle M.
Abstract:: Recent changes in legislation restricting lead content in waste streams produced during electronics manufacturing have inspired a strong push to develop alternative lead-free materials systems for piezoelectric applications. One lead-free piezoelectric material system, (100-X)Bi₀.₅Na₀.₅TiO₃-XBi₀.₅K₀.₅TiO₃ (BNKT), has shown promising properties in bulk research, however, difficulties have arisen in the development of...
Resource Type:: Masters Thesis
Full Text:: polarization begins to decrease as a negative electric field is applied until reaching the coercive field, Ec

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