Index Catalog // ScholarsArchive@OSU

Creator:: Prasertpalichat, Sasiporn
Abstract:: The role of A-site non-stoichiometry was investigated in lead-free piezoelectric ceramics based on compositions in the 1-x(Bi₀.₅Na₀.₅TiO₃)-xBaTiO₃ system near the morphotropic phase boundary where x = 0.055, 0.06 and 0.07. The samples were prepared by a conventional solid state mixed oxide route with the A- site stoichiometry modified to incorporate...
Resource Type:: Dissertation
Full Text:: the lab; Chien-Chih Huang, thanks for your kind help with my first project here at OSU; Dr. Whitney

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:: group members, Seunghwa Kwon, Chien-Chih Huang, Anurak Prasartkhetragarn, Piyachon Ketsuwan, Eric A

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:: good friend once you moved out to Oregon too. Thanks to Seunghwa Kwon and Chien-Chih Huang for

Creator:: Huang, Chien-Chih
Abstract:: A new group of lead free piezoelectric perovskite solid solutions, (1-x)Bi(B'B")O₃-xABO₃, were obtained via solid-state processing techniques. The solubility of unstable perovskite Bi(B'B")O₃ compounds into stable perovskite compounds was found to be related to the tolerance factor of the ABO₃ perovskite endmembers. The morphotropic phase boundary (MBP) in perovskite solid...
Resource Type:: Dissertation
Full Text:: Chien-Chih-Theisis AN ABSTRACT OF THE DISSERTATION OF

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:: . Dr. Chien-Chih Huang participated in the ceramic processing and the LabVIEW setup for the

ScholarsArchive@OSU