|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Powder Materials for Energy Applications
||Cubic Sub-micron BiFeO<sub>3</sub> Powders for Improved Electrical Properties
||Jenna Metera, Olivia A. Graeve
|On-Site Speaker (Planned)
Ceramic capacitor technologies using lead based materials is being phased out for its environmental and handling hazards and bismuth ferrite is the next best replacement. Unfortunately, the electrical properties in bismuth systems are not as robust as the lead alternatives. The improvement of electrical properties such as charge density, charge anisotropy, relative permittivity, and dielectric loss are considered parameters that will make bismuth ferrite a competitive alternative. In order to maximize the utility of these properties, the answer is in the morphology of the powders and the contact points by which each particle is connected to another. The cubic particle morphology is produced through a hydrothermal synthesis with changes in the concentration of potassium hydroxide. The next step is to assemble the powders into a workable substrate for electrical testing. Powders have been characterized by X-ray diffraction and scanning electron microscopy.
||Planned: Supplemental Proceedings volume