SOLICITATION NOTICE
93 -- HIGH TEMPERATURE ENVIRONMENTAL BARRIER BOND COAT PROCESSING FOR SIC - SICCERAMIC MATRIX COMPOSITES
- Notice Date
- 5/20/2010
- Notice Type
- Combined Synopsis/Solicitation
- NAICS
- 332812
— Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers
- Contracting Office
- NASA/Glenn Research Center, 21000 Brookpark Road, Cleveland, OH 44135
- ZIP Code
- 44135
- Solicitation Number
- NNC10340806Q
- Response Due
- 5/28/2010
- Archive Date
- 5/20/2011
- Point of Contact
- Antoinette M. Niebieszczanski, NAIS Superuser, Phone 216-433-2806, Fax 216-433-2480, Email Antoinette.M.Niebieszczanski@nasa.gov - Dorothy E Viancourt, Purchasing, Phone 216-433-2532, Fax 216-433-2480, Email Dorothy.E.Viancourt@nasa.gov
- E-Mail Address
-
Antoinette M. Niebieszczanski
(Antoinette.M.Niebieszczanski@nasa.gov)
- Small Business Set-Aside
- Total Small Business
- Description
- NASA Advanced EBC coating plans for DVD processing:This research project is to process advanced environmental barrier coatings for SiC/SiCCMCs based on NASA specifications using unique high temperature vapor jet, Electron BeamPhysical Vapor Deposition - Directed Vapor Deposition (DVD) processing approach at theOfferor's facility. The objective of this work is to understand the composition andarchitecture effects on the performance and durability of advanced environmental barriercoating systems for NASA mission programs. The deposition process selections andcontrols of multi-component oxides and silicates with desired stoichiometry andcomposition homogeneity are essential. The performance of the coatings will be studied atNASA Glenn Research Center. The current NASA EBCs in this task are targeted as hybridsystems for advanced SiC/SiC CMC combustor applications; however, the smoother andthinner coating vapor deposition systems are also applicable to SiC/SiC CMC turbineairfoils when the processing capability is extended.The Salient features of the DVD EBC development:I. Advanced high temperature capable environmental barrier coating processing:Seven oxide and oxide-silicate coating systems shall be processed on NASA pre-processedenvironmental barrier coating coated SiC/SiC ceramic matrix composite coupons, with 1diameter (or 2 diameter disc specimen configuration).Advanced, optimized columnarcoating structures based on NASA previous contracted research will be used. Maximum eight(8) specimens will be coated for each composition (if the 1 disc specimen configurationwill be used). The coating compositions are listed below:1). Pure HfO2-5wt%Y2O32). HfO2-27%wtY2O33). HfO2-(20-27)%wtYb2O34). Four (4) component HfO2-Y2O3-Gd2O3-Yb2O35). Co-deposition of four (4) component HfO2-Y2O3-Gd2O3-Gd2O3 (being Yttria rich) withsilica 6). Co-deposition of four (4)-component HfO2-Y2O3-Gd2O3-Yb2O3 (being Ytterbia rich) withsilica7). Alternating layers of four (4)-component HfO2-Y2O3-Gd2O3-Yb2O3 with mullite ormullite+Yb2O3 (or material to be determined which can be deposited from a single source).For Composition 5) above, a set of at least three (3) coupons (of to be determinedsubstrate material) will be provided having varying amounts of silica in the oxidecoating.II. Advanced multiple layer environmental barrier coating system processing:The successful Offeror shall also provide multiple layer oxide-silicate coatings onto twosets of 1 (or 2) diameter CMC coupons provided by NASA having a ~2 mil silicon layer(bond coat). Two (2) different systems will be applied onto two sets of eight (8)coupons. The multiple layer oxide-silicate compositions to be applied are given in thelist below:1. Deposit a 5 mil dense composite Yb2O3-Y2O3-Gd2O3-HfO2 + Ytterbium Disilicate(Yb2Si2O7) mixture layer, by co-deposition of a Four (4)-component Yb2O3-Y2O3-Gd2O3-HfO2layer with silica, onto the silicon bond coated substrates; then deposit a 5 mil dense(Yb,Gd,Y)2Si2O7 top layer.2. Deposit a 5 mil dense composite Yb2O3-Y2O3-Gd2O3-HfO2 + Ytterbium Disilicate(Yb2Si2O7) mixture layer, by co-deposition of a Four (4)-component Yb2O3-Y2O3-Gd2O3-HfO2layer with silica, on to the silicon bond coated substrates; then deposit a 5 mil dense(Yb,Gd,Y)2Si2O7 layer, then finishing with a 5 mil 4-component HfO2-Y2O3-Gd2O3-Yb2O3 +Ytterbium silicate co-deposition top layer (columnar structure).A total of up to 72 final coupons shall be provided to NASA along with at least 3development coupons.All compositions are considered US Government Furnished Property for the collaborativedevelopment work between NASA and the successful Offeror.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/NASA/GRC/OPDC20220/NNC10340806Q/listing.html)
- Record
- SN02156229-W 20100522/100520235958-52a88b9847d9a795fb66ff31803d9bef (fbodaily.com)
- Source
-
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