Development of injection molded and sintered silicon nitride ceramics is continuing at GTE Laboratories for application in engine components. Both small (CATE axial turbine blades) and large (AGT 100 rotor) cross-section parts have been fabricated with good maintenance of geometry. CATE blades failed at an average of 136 % of design speed in cold spin tests. They also exhibit good oxidation resistance. Fabrication of AGT rotors by sintering is currently limited by burnout cracking. Progress has been made in controlling these cracks. Preliminary experiments show that hot isostatic pressing can eliminate macroscopic internal flaws from AGT rotors.
Injection molded silicon nitride for engine applications: Fabrication and properties
Siliziumnitridspritzguss fuer Motoranwendungen: Herstellung und Eigenschaften
1984
6 Seiten, 9 Bilder, 12 Quellen
Aufsatz (Konferenz)
Englisch
Fabrication of silicon nitride turbine engine components
Tema Archiv | 1984
|Processing Study of Injection Molding of Silicon Nitride for Engine Applications
SAE Technical Papers | 1985
|Injection-molded silicon nitride swirl chamber for high power turbucharged diesel engines
Kraftfahrwesen | 1986
|New possibilities for engine applications offered by sintered silicon nitride
Tema Archiv | 1981
|Fabrication of injection molded sintered Alpha SiC turbine components
Kraftfahrwesen | 1981
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