Project No: FE0004734
Performer: Louisiana State University System


Contacts

Richard A. Dennis
Technology Manager, Turbines
National Energy Technology Laboratory
3610 Collins Ferry Road
P.O. Box 880
Morgantown, WV 26507-0880
304-285-4515
richard.dennis@netl.doe.gov

Patcharin Burke
Project Manager
National Energy Technology Laboratory
626 Cochrans Mill Road
P.O. Box 10940
Pittsburgh, PA 15236-0940
412-386-7378
patcharin.burke@netl.doe.gov

Shengmin Guo
Principal Investigator
Louisiana State University
Department of Mechanical Engineering
Baton Rouge, LA 70803
225- 578-7619
sguo2@lsu.edu

Duration
Award Date:  10/01/2010
Project Date:  03/31/2015

Cost
DOE Share: $504,863.00
Performer Share: $129,808.00
Total Award Value: $634,671.00

Performer website: Louisiana State University System - http://www.lsu.edu

Advanced Energy Systems - Hydrogen Turbines

Computational Design and Experimental Validation of New Thermal Barrier Systems

Project Description

New thermal barrier coating (TBC) materials can be tested for mechanical, physical, and chemical properties by altering the bond coat and top coat compositions. Current studies on TBCs are usually performed by trial-and-error approach. As the trial-and-error process is usually very expensive and time consuming, the Louisiana State University and Southern University team proposes to design a high performance TBC with enhanced top and bond coat through a reliable and efficient theoretical/computational approach. This can be used systematically to identify promising TBC bond coat and top coat compositions. Using high performance computing (HPC) simulations, an ab initio (i.e., from first principles) molecular dynamics (MD)-based design tool can screen and identify TBC systems with desired physical properties. Such computations work from basic or fundamental laws of nature to derive effects without intervening assumptions or special models, in principle producing well-founded results. The new TBC systems will be demonstrated experimentally under IGCC environments.

The 2Al-34Ta-36Ir crystal structure model used in one of our simulations.
The gray balls are Al atoms, blue balls are Ta atoms, and yellow balls are Ir atoms.
The two Ta atoms are substituted by two Al atoms.



Program Background and Project Benefits

This project will utilize a theoretical/computational approach to design a high performance thermal barrier coating (TBC) with enhanced top and bond coat. Turbine materials research seeks to improve coating materials that will allow for higher temperature operation and increased durability leading to increased turbine efficiency and reduced maintenance. Specifically, this project will use an ab initio (i.e., from first principles) molecular dynamics-based design tool to screen and identify TBC systems with desired physical properties, using high performance computing (HPC) simulations, to eliminate the need for expensive and time-consuming trial-and-error processes.


Accomplishments