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Filtering by: Alternative title ssim EC 600 Advisor Dolgos, Michelle R. Committee Member Lerner, Michael

Structure-Property Relationships of Disordered Electronic Materials : From Crystalline to Amorphous

Creator:

Surta, Todd Wesley, Jr.

Abstract:

Two perovskite materials (Bi0.5(A)0.5)(Sc0.5Nb0.5)O3, where A = K+ and Na+ were synthesized phase pure for the first time. Their structures were determined by indexing synchrotron X-ray diffraction data and subsequent combined Rietveld refinement on neutron and synchrotron X-ray diffraction data revealing significant disorder on the A-sites of these materials. A...

Resource Type:

Dissertation

Full Text:

electric field to align dipoles (coercive field, Ec), have a larger strain response, have polarizations
Substitutional Effects on the Electromechanical Properties of Lead-free, Piezoelectric (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT)

Creator:

McQuade, Ryan R.

Abstract:

This work investigates the effect of cation substitution on the properties of the lead-free, solid solution (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT). Substitution into NBT-BT increases disorder and increases the relaxor ferroelectric properties. These relaxor ferroelectric materials show large piezoelectric strains that can be utilized in actuator applications. Ceramic samples were prepared using standard...

Resource Type:

Dissertation

Full Text:

field (Ec). [22] The saturated polarization, Ps, can be found by extrapolating the linear, top