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Sintered reaction bonded Si3N4 for the AGT 101 turbine rotorThe sintered reaction reaction bonded Si3N4 (SRBSN) process, with Y2O3 as a sintering aid, was selected for the fabrication of the AGT 101 turbine rotor. Experiments to determine the optimum Y2O3 composition of this system are discussed. The room temperature strength of the optimum material (RM-1) exceeds 700 MPa while the 1200 C strength exceeds 550 MPa. The slip casting fabrication technique employed for the AGT 101 simulated rotor is described. Rotors have been cast, nitrided and sintered. Densities exceeding 97% of theoretical (3.26 g/cc) have been obtained. Problems relating to sintering reproducibility, and the overall quality of the simulated rotors have been identified.
Document ID
19810048138
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mangels, J. A. (Ford Scientific Research Laboratory Dearborn, Mich., United States)
Date Acquired
August 11, 2013
Publication Date
November 1, 1980
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: Contractors Coordination Meeting on Automotive Technology Development
Location: Dearborn, MI
Start Date: November 11, 1980
End Date: November 13, 1980
Sponsors: U.S. Department of Energy
Accession Number
81A32542
Funding Number(s)
CONTRACT_GRANT: DEN3-167
Distribution Limits
Public
Copyright
Other

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