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Filtering by: Resource Type Dissertation Subject Dielectric relaxation

Defect Mechanisms in Bismuth-based Perovskites

Creator:

Kumar, Nitish

Abstract:

The aim of this research is to develop a fundamental understanding of the dominant defect species and the relevant defect equilibrium conditions for bismuth-containing perovskites to help guide the development of these materials for emerging applications. This is of paramount importance for many demanding applications, because ultimately the defect equilibria...

Resource Type:

Dissertation
Dielectric relaxation in crystalline V₂O₅

Creator:

Mar, Kenneth Mow

Resource Type:

Dissertation
Relaxor characteristic and phase evolution of complex perovskite barium titanate bismuth zinc titanate ceramics

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