Brittle materials design, high temperature gas turbine. Volume 2. Ceramic turbine rotor technology. 12th interim report, January--September 1977
Investigations of the materials used to fabricate duo-density ceramic turbine rotors were conducted on injection molded reaction bonded and hot pressed silicon nitride. The injection molding process, utilized to fabricate rotor blade rings, was improved by optimizing the molding parameters with the automated control system and improving the molding mixture. Duo-density turbine rotors were tested in the cold spin pit to evaluate the hot press to reaction sintered bond joints and the effect of I.D. voids, in the blade ring rim, on blade failure speeds. A procedure for determining whether statistically significant differences exist between two sets of data, known as the 'Hypothesis Testing' was outlined. The test was applied to data from duo-density turbine rotors and showed that blade strength did deteriorate after the press-bonding operation. (TFD)
- Research Organization:
- Ford Motor Co., Dearborn, MI (USA)
- DOE Contract Number:
- EY-76-C-02-2630
- OSTI ID:
- 6695873
- Report Number(s):
- AMMRC-TR-78-14(Vol.2)
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Related Subjects
330103* -- Internal Combustion Engines-- Turbine
AUTOMOBILES
BRITTLENESS
CERAMICS
DESIGN
FABRICATION
GAS TURBINES
MATERIALS
MECHANICAL PROPERTIES
NITRIDES
NITROGEN COMPOUNDS
PERFORMANCE TESTING
PNICTIDES
ROTORS
SILICON COMPOUNDS
SILICON NITRIDES
TESTING
TURBINE BLADES
TURBINES
TURBOMACHINERY
VEHICLES