Calvin Davis III, University of Florida

Calvin attended Clemson University and received his undergraduate degree in Polymer & Fibre Chemistry in 2011. He was awarded with the National Science Foundation's Graduate Research Fellowship in 2012 based on his proposed work in the area of glass ceramics.

Calvin is currently working towards his Ph.D. in the Materials Science and Engineering Department at the University of Florida. His research area is glass-ceramics for energy storage applications. His current interest is lithium-ion conducting glass ceramics. He is focusing on novel processing methods to improve the ionic conductivity of glass ceramic electrolytes.

 

Microwave processing for improved ionic conductivity in LiO2-Al2O3-TiO2-P2O5 glass ceramics

Glass ceramics with a NASICON crystal structure are of great interest as solid state electrolytes because of their thermal stability and high room temperature ionic conductivities. It has been shown that the crystallization kinetics can greatly affect the activation energy and ionic conductivity of glass ceramic electrolytes.

In this work the effects of microwave heating on the crystallization and ionic conductivities of glass ceramics was studied, showing improved conductivities for microwaved samples. LiO2-Al2O3-TiO2-P2O5 (LATP) was prepared by melt quenching methods, and crystallization was induced by both microwave and conventional heating for comparison. Impedance spectroscopy, XRD, and SEM were used for analysis.