Starting in July 1971, the Defense Advanced Research Projects Agency (DARPA) sponsored a joint program with the Ford Motor Company to demonstrate and encourage the use of brittle materials in engineering design. The program, which was to be a total systems iterative approach to high temperature strutural design with ceramics in highly stressed applications focused on the development of ceramic components for gas turbine application. A goal of 200 hours of engine or engine rig demonstration for representative duty cycle temperatures in a regenerated vehicular gas turbine was chosen, with uncooled ceramic components to operate at least 25 hours at 2500 F, considerably beyond the temperatures possible with uncooled metal components. The total systems approach included major efforts in ceramic design, materials development fabrication process development, fabrication process development and test and evaluation methodology. Considerable progress was made in each of these areas during the course of the program. For example the strength of reaction bonded silicon nitride (RBSN) used in the stator and rotor blades was more than tripled between July 1971 and July 1977. (DePo)
Brittle materials design, high temperature gas turbine
Hochtemperatur-Fahrzeuggasturbinen aus sproeden Werkstoffen
US Government Reports ; Mar ; 1-234
1981
234 Seiten
Report
English
Brittle materials design, high temperature gas turbine
Tema Archive | 1981
|Brittle materials design, high temperature gas turbine
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