Strong, Tough Porous Materials via Freeze Casting
Student: Noriaki Arai
In this study, we aim to develop novel freeze casting method which creates hierarchical pore structure with the goals to achieve strong, tough, porous materials. For example, our novel freeze casting method is able to create inorganic bridges and surface asperities which enhance the strength of porous materials. We will evaluate the pore characteristics and its functionality of materials as well as their mechanical properties. Read More...
Ceramic Fracture Behavior with Anisotropic Inclusions
Student: Neal Brodnik
Fracture behavior in brittle materials has long been a topic of interest in research, both in the sense of understanding the mechanisms of fracture as well as altering material systems to resist it. Historically, ceramics and ceramic composites have been designed with microstructures tailored to hinder crack growth... Read More...
Oxidation of Rare-Earth Silicate Multilayer EBCs
Student: Benjamin Herren
Due to their high melting temperature, low density, and good thermomechanical stability silicon-based ceramics (SiC, Si3N4) are one of the most promising materials systems for high temperature structural applications in gas turbine engines. However, their passivating SiO2 surface layer reacts with water vapor contained in combustion environments. Read More...
Reinforced Silicon Oxycarbide Composites via Freeze-Casting with Preceramic Polymers
Student: Claire Kuo
An established method of strengthening ceramics — adding reinforcement fillers — is integrated into freezing casting to strengthen silicon oxycarbide (SiOC) porous ceramics. Due to the nature of freeze casting process and differences in fillers, the reinforcing effects of fillers on freeze-cast ceramics are more complicated than that of conventional composites. Read More...
Restorative and Preservative Coatings for Art
Student: Madeleine Wright
Oil-based paint has been the most popular painterly medium in the Western world for roughly the past six centuries; therefore, the degradation of oil paintings is a widespread phenomenon affecting artwork of all eras. Understanding the mechanical deformation of oil-based paint is vital to establishing effective conservation and restoration protocols. Read More...