THIS GRANT IS A CONTINUATION OF N00014-14-1-0625 DYNAMICS OF CMAS-COATING INTERACTIONS AND IMPLICATIONS FOR GAS TURBINE TECHNOLOGY
Abstract
This research program (funds are for Dr. Carlos Levi) will develop the scientific foundation for TBC design concepts that are sufficiently robust to withstand CMAS degradation in current aero-engines as well as under the higher temperatures required to advance gas turbine technology. A research program is proposed to study the dynamics of CMAS interactions with oxides of interest in thermal and environmental barrier coatings (T/EBCs) and the potential effects on durability. The problem is sufficiently complex, owing in part to thestochastic nature of CMAS deposits, that identification of robust solutions requires a strategy guided by ICME principles. While an integrated effort is not yet in place, some of the building blocks are already under development in several Navy-sponsored programs. Itis envisaged that such integrated approach would involve elements of (i) phase equilibria and thermochemistry, (ii) the dynamic processes controlling the infiltration of molten silicates into segmented microstructures, (iii) the mechanics governing the response of the system to cyclic thermal gradients, and (iv) the processing science needed to implement the emerging engineered materials solutions.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 23, 2016
- Source ID
- N000141612702
Entities
People
- Carlos G. Levi
Organizations
- Office of Naval Research
- United States Navy
- University of California, Santa Barbara