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Production Strategies for Production-Quality Parts for Aerospace ApplicationsA combination of rapid prototyping processes (3D Systems' stereolithography and Sanders Prototyping's ModelMaker) are combined with gelcasting to produce high quality silicon nitride components that were performance tested under simulated use conditions. Two types of aerospace components were produced, a low-force rocket thruster and a simulated airfoil section. The rocket was tested in a test stand using varying mixtures of H2 and O2, whereas the simulated airfoil was tested by subjecting it to a 0.3 Mach jet-fuel burner flame. Both parts performed successfully, demonstrating the usefulness of the rapid prototyping in efforts to effect materials substitution. In addition, the simulated airfoil was used to explore the possibility of applying thermal/environmental barrier coatings and providing for internal cooling of ceramic parts. It is concluded that this strategy for processing offers the ceramic engineer all the flexibility normally associated with investment casting of superalloys.
Document ID
20010060375
Acquisition Source
Glenn Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Cawley, J. D. (Case Western Reserve Univ. Cleveland, OH United States)
Best, J. E. (Case Western Reserve Univ. Cleveland, OH United States)
Liu, Z. (Case Western Reserve Univ. Cleveland, OH United States)
Eckel, A. J. (NASA Glenn Research Center Cleveland, OH United States)
Reed, B. D. (NASA Glenn Research Center Cleveland, OH United States)
Fox, D. S. (NASA Glenn Research Center Cleveland, OH United States)
Bhatt, R. (NASA Glenn Research Center Cleveland, OH United States)
Levine, Stanley R.
Date Acquired
September 7, 2013
Publication Date
January 1, 2000
Subject Category
Metals And Metallic Materials
Funding Number(s)
PROJECT: RTOP 523-31-13
CONTRACT_GRANT: NAS3-404
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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