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Articles 1 - 2 of 2
Full-Text Articles in Materials Science and Engineering
Thermodynamic Investigation Of Yttria-Stabilized Zirconia (Ysz) System, Mohammad Asadikiya
Thermodynamic Investigation Of Yttria-Stabilized Zirconia (Ysz) System, Mohammad Asadikiya
FIU Electronic Theses and Dissertations
The yttria-stabilized zirconia (YSZ) system has been extensively studied because of its critical applications, like solid oxide fuel cells (SOFCs), oxygen sensors, and jet engines. However, there are still important questions that need to be answered and significant thermodynamic information that needs to be provided for this system. There is no predictive tool for the ionic conductivity of the cubic-YSZ (c-YSZ), as an electrolyte in SOFCs. In addition, no quantitative diagram is available regarding the oxygen ion mobility in c-YSZ, which is highly effective on its ionic conductivity. Moreover, there is no applicable phase stability diagram for the nano-YSZ, which …
Three-Dimensional Graphene Foam Reinforced Epoxy Composites, Leslie Embrey
Three-Dimensional Graphene Foam Reinforced Epoxy Composites, Leslie Embrey
FIU Electronic Theses and Dissertations
Three-dimensional graphene foam (3D GrF) is an interconnected, porous structure of graphene sheets with excellent mechanical, electrical and thermal properties, making it a candidate reinforcement for polymer matrices. GrF’s 3D structure eliminates nanoparticle agglomeration and provides seamless pathways for electron travel. The objective of this work is to fabricate low density GrF reinforced epoxy composites with superior mechanical and electrical properties and study the underlying deformation mechanisms. Dip coating and mold casting fabrication methods are employed in order to tailor the microstructure and properties. The composite’s microstructure revealed good interfacial interaction. By adding mere 0.63 wt.% GrF, flexural strength was …