||Surface coatings and surface modifications are critical technologies for materials design and applications. Surface protection via coatings or surface modifications is an integral part of materials technology that maximizes the performance and optimizes the functionality of materials such as ceramics, metals, composites and biomaterials. Surface coatings and modifications protect materials from various hostile environments such as oxidizing environments, corrosive environments, high stress environments, etc. and thereby extend the life and enhance the functionality. For example, thermal barrier coatings can significantly increase the gas turbine engine efficiency by increasing the temperature capability of cooled turbine hot section components based on nickel-base superalloys or ceramic matrix composites (CMC’s). Environmental barrier coating is an enabler for ceramic matrix composites, without which ceramic matrix composites are not viable in gas turbines due to surface recession. Coatings can impart certain functionality such as porous coating on bladetrack that provides sealing and coatings on biomedical implants that stimulate the tissue growth. Coating process methods, including thermal spray, plasma spray (air pressure, low pressure, and suspension), electron beam-physical vapor deposition (EB-PVD), chemical vapor deposition (CVD), solution-based processes, and cold spray, are also of high interest. This symposium will emphasize advanced design, processing, property, non-destructive evaluation, and modeling of surface coatings and modifications for enabling material systems. Next generation coatings for future applications are also of interest.
Proposed session topics (limit to 8):
Thermal Barrier Coatings;
Environmental Barrier Coatings;
Advanced Processing, Testing and Modeling