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Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W912CG22C0034
Agency Tracking Number: D2-2688
Amount: $1,495,754.92
Phase: Phase II
Program: SBIR
Solicitation Topic Code: A17-030
Solicitation Number: 17.1
Solicitation Year: 2017
Award Year: 2022
Award Start Date (Proposal Award Date): 2022-09-06
Award End Date (Contract End Date): 2025-10-05
Small Business Information
133 Defense Highway, Suite 212
Annapolis, MD 21401-8907
United States
DUNS: 153908801
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
Principal Investigator
 Larry Fehrenbacher
 (410) 224-3710
Business Contact
 Sharon Fehrenbacher
Phone: (410) 224-3710
Research Institution

The goal of the U.S. Army, Air Force, Navy, Marines, commercial aviation and industrial power plants to develop gas turbines capable of reliable operation at turbine inlet temperatures up to 3100oF. Consequently, there is a driving need to extend the capability of SiC CMCs and/or related Ceramic CMCs and associated thermal—environmental barrier coatings (T-EBCs) to resist degradation in harsh moisture laded combustion and sand/dust ingestion (CMAS) conditions at much higher temperatures than GE’s current state of the art 2400oF. In Phase 1, Technology Assessment and Transfer (TA&T) demonstrated that graded HfC-SiC matrix CMC samples densified by TA&T’s rapid GP-RTG CVI process and coated with TA&T’s Yb Hafnia multilayer T-EBC provided excellent protection capabilities in combined moisture-CMAS environments at 1550oC (2822oF). In Phase 2 Technology Assessment and Transfer (TA&T) proposes to optimize the CVI and/or CVI-PIP densification process and associated microstructures of the graded HfC-SiC CMCs. In parallel, TA&T will develop and optimize dual layer plasma spray Yttria Stabilized Zirconia-magnetron sputtered Yb Hafnia multilayer T-EBCs based on laboratory scale high humidity-CMAS testing. As a subcontractor Brayton Energy proposes a comprehensive approach to design, build and test an advanced, subscale CMC combustor for a medium lift helicopter engine. Brayton will in steps, use its proprietary software and CFD analysis to optimize a medium powered turboshaft helicopter combustor design and refined subscale CMC combustor test article design and complete their effort with a combustor instrumentation, test plan and analysis and comparison of combustor results from the High Particulate Ingestion Rig test with modeling predictions. TA&T will apply the optimized CMC densification and dual layer plasma spray YSZ-sputtered Yb Hafnia multilayer T-EBCs protocols to subscale combustor test article and send to ARL Aberdeen for test and evaluation. All the experimental details, results, analysis and recommendations for follow on scale up will be documented in a Final Report. An attractive near-term commercialization approach is also defined.

* Information listed above is at the time of submission. *

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