Improved silicon carbide for advanced heat engines. Final annual report No. 2, 15 February 1986-14 February 1987

Technical Report · Thu Oct 01 00:00:00 EDT 1987

OSTI ID:5068195

Whalen, T J

This is the second annual technical report entitled, Improved Silicon Carbide for Advanced Heat Engines, and includes work performed during the period February 16, 1986 to February 15, 1987. The program is conducted for NASA under contract NAS3-24384. The objective is the development of high strength, high reliability silicon carbide parts with complex shapes suitable for use in advanced heat engines. The fabrication methods used are to be adaptable for mass production of such parts on an economically sound basis. Injection molding is the forming method selected. This objective is to be accomplished in a two-phase program: (1) to achieve a 20 percent improvement in strength and a 100 percent increase in Weibull modulus of the baseline material; and (2) to produce a complex shaped part, a gas turbine rotor, for example, with the improved mechanical properties attained in the first phase. Eight tasks are included in the first phase covering the characterization of the properties of a baseline material, the improvement of those properties and the fabrication of complex shaped parts. Activities during the first contract year concentrated on two of these areas: fabrication and characterization of the baseline material (Task 1) and improvement of material and processes (Task 7). Activities during the second contract year included an MOR bar matrix study to improve mechanical properties (Task 2), materials and process improvements (Task 7), and a Ford-funded task to mold a turbocharger rotor with an improved material (Task 8).

• Research Organization: Ford Motor Co., Dearborn, MI (USA)
• OSTI ID: 5068195
• Report Number(s): N-90-10293; NASA-CR-180831; NAS-1.26:180831
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
SILICON CARBIDES
MECHANICAL PROPERTIES
MOLDING
COST
FABRICATION
GAS TURBINE ENGINES
PROGRESS REPORT
RELIABILITY
ROTORS
TURBOCHARGERS
CARBIDES
CARBON COMPOUNDS
COMPRESSORS
DOCUMENT TYPES
ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
SILICON COMPOUNDS
SUPERCHARGERS
360203* - Ceramics
Cermets
& Refractories- Mechanical Properties