Accession Number : AD0263814

Title :   DEVELOPMENT OF COMPOSITE STRUCTURAL MATERIALS FOR HIGH TEMPERATURE APPLICATIONS

Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV

Personal Author(s) : SUTTON,W.H. ; TALENTO,A. ; CHORNE,J.

Report Date : AUG 1961

Pagination or Media Count : 1

Abstract : Studies were made of the feasibility of making whisher-reinforcement of metal composites for structural applications. The ultimate goal is a composite with a strength-to-density ratio of 600,000 in. at 2000 F. The growth of sapphire (Al2O3) whiskers was optimized to produce lengthto-diam ratios of 1000 or better. Studies are underway to improve the wettability and adherence between the sapphire whiskers and silver matrix. Wire specimens of silver, 0.030 in. in diam and reinforced with Al2O3 whiskers, were fabricated by centrifugal casting methods. This method yields composites of nearly 100% density, and results in greatly improved penetration of the silver into the whisker bundles, even though the latter were not metallized. (Author)

Descriptors :   *SILVER, ALUMINUM COMPOUNDS, CASTING, CERAMIC FIBERS, COMPOSITE MATERIALS, CRYSTALS, GROWTH(PHYSIOLOGY), HIGH TEMPERATURE, MECHANICAL PROPERTIES, OXIDES, PROCESSING, REINFORCING MATERIALS, SAPPHIRE, SYNTHESIS, TENSILE PROPERTIES, WIRE

Distribution Statement : APPROVED FOR PUBLIC RELEASE