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Protective CMAS Coatings for SiC CMCs

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911QX-19-C-0002
Agency Tracking Number: A2-7216
Amount: $988,121.88
Phase: Phase II
Program: SBIR
Solicitation Topic Code: A17-030
Solicitation Number: 17.1
Solicitation Year: 2017
Award Year: 2019
Award Start Date (Proposal Award Date): 2018-11-07
Award End Date (Contract End Date): 2020-11-07
Small Business Information
133 Defense Highway, Suite 212
Annapolis, MD 21401
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

Graded rare earth hafnia multilayer coatings with three different top layer compositions will be deposited on SiC CMC and alumina substrates, characterized by XRD, SEM and EDS, and subjected to flowing air-steam at 50% relative humidity without and with CMAS in both isothermal and thermal cycling conditions. Post test analyses include weight change, SEM microstructure characterization changes, XRD/EDS chemical changes to determine and compare the effectiveness of the graded EBC compositions to protect the SiC CMC substrates. DSC/TGA analysis will be used to compare thermal properties of AFRL-03 and synthetic CMAS and correlate with possible differences in CMAS reactions with graded rare earth hafnia multilayer coatings. Coated buttons and bars will be provided to ARL and Honeywell for independent tests in laboratory scale and burner rig combustion-CMAS environments.

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

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