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Accession Number:
AD0607653
Title:
DEVELOPMENT OF COMPOSITE STRUCTURAL MATERIALS FOR SPACE VEHICLE APPLICATIONS.
Corporate Author:
GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV
Report Date:
1961-07-01
Abstract:
The concept of utilizing the extremely high strength of filamentary crystals whiskers for reinforcing metals is presented. Structural considerations of filament reinforcement and the problems of attaining the full reinforcing capabilities of whiskers are now discussed. An example is given for predicting the strengths of a composite consisting of a columbium alloy F-48 reinforced with sapphire Al2O3 whiskers. Such whiskers retain a considerable portion of their strength at elevated temperatures, e.g., tensile strengths of 150,000 psi at 3570 F. Calculations showed that reinforcing F-48 alloy with 50 Al2O3 whiskers could improve the strength-to-density ratio more than four-fold over a 3000 F temperature range. The preliminary results of an experimental program concerned with the development of composites of aluminum reinforced with Al2O3 whiskers and ZrO2 fibers are discussed. It is concluded that the crux of utilizing the full reinforcing potential of whiskers lies in the careful orientation, wetting, and bonding of the whiskers in the metal phase. Author
Descriptive Note:
Technical information series,
Supplementary Note:
Presented at the American Rocket Society Lifting Re-entry Vehicles Structures, Materials and Design Conference 4-6 Apr 61, Palm Springs, Calif. Legibility of this document is in part unsatisfactory. Reproduction has been made from best available copy.
Pages:
0044
Contract Number:
NOw60 0465d
File Size:
0.00MB
