Advanced aircraft engine microlaminated intermetallic composite turbine technology
- GE Corporate Research and Development, Schenectady, NY (United States)
- GE Aircraft Engines, Cincinnati, OH (United States)
Higher gas path temperatures for greater aircraft engine thrust and efficiency will require both higher temperature gas turbine airfoil materials and optimization of internal cooling technology. Microlaminated composites consisting of very high temperature intermetallic compounds and ductile refractory metals offer a means of achieving higher temperature turbine airfoil capability without sacrificing low temperature fracture resistance. Physical vapor deposition, used to synthesize microlaminated composites, also offers a means of fabricating advanced turbine blade internal cooling designs. The low temperature fracture resistance of microlaminated Nb(Cr)-Cr{sub 2}Nb microlaminated composites approached 20 MPa{radical}m in fracture resistance curves, but the fine grain size of vapor deposited intermetallics indicates a need to develop creep resistant microstructures.
- Sponsoring Organization:
- Department of the Air Force, Washington, DC (United States)
- OSTI ID:
- 490751
- Report Number(s):
- CONF-960401-; ISBN 1-55899-337-1; TRN: IM9729%%2
- Resource Relation:
- Conference: Spring meeting of the Materials Research Society (MRS), San Francisco, CA (United States), 8-12 Apr 1996; Other Information: PBD: 1996; Related Information: Is Part Of Layered materials for structural applications; Lewandowski, J.J. [ed.] [Case Western Reserve Univ., Cleveland, OH (United States)]; Ward, C.H. [ed.] [Air Force Office of Scientific Research, Bolling AFB, DC (United States)]; Jackson, M.R. [ed.] [General Electric Corporate R and D, Schenectady, NY (United States)]; Hunt, W.H. Jr. [ed.] [Alcoa Technical Center, Alcoa Center, PA (United States)]; PB: 325 p.; Materials Research Society symposium proceedings, Volume 434
- Country of Publication:
- United States
- Language:
- English
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