Affordable CMAS -Resistant Thermal Barrier Coatings Navy STTR FY2012.A Sol No.: Navy STTR FY2012.A Topic No.: N12A-T019 Topic Title: Affordable CMAS -Resistant Thermal Barrier Coatings Proposal No.: N12A-019-0205 Firm: Directed Vapor Technologies International, Inc. 2 Boars Head Lane Charlottesville, Virginia 22903 Contact: Derek Hass Phone: (434) 977-1405 Web Site: www.directedvapor.com Abstract: Thermal barrier coating systems that incorporate enhanced protection to CMAS induced delaminations while still retaining excellent thermal protection properties and high thermal cycle lifetimes are desired for next generation gas turbine engines. In this work, DVTI will develop advanced CMAS protection methodologies having novel compositions and architectures and as well as processing approaches for applying multi-layered protection concepts onto components for use in turbine engines. The latter will be enabled through the use of a novel deposition approach that has the ability to economically deposit multi-layered structures at high rate with unique control over the composition and microstructure and the use of integrated computational materials engineering techniques (ICME). Specifically, work during phase I will entail: i) the identification of advanced CMAS protective concepts, ii) the assembly of an experimental configuration and ICME techniques that could be used to determine the processing approaches required to deposit CMAS resistant TBC structures and iii) a testing methodology that determined the effectiveness of the resulting structures. Effective coatings from Phase I testing will be subjected to thermal cycling and erosion testing during the Phase I option to quantify performance advantages. Benefits: This research is anticipated to result in a thermal barrier coating system enhanced protection from CMAS induced reductions in coating durability. This will enable the realization of many advanced gas turbine engine designs while leading to several percent thrust improvement or specific fuel consumption reduction for current turbine engines. These advances will not only benefit military engines and aircraft, but also commercial gas turbine engines. Return