Accession Number : AD0659374

Title :   AIR FORCE BASIC RESEARCH IN HIGH-PERFORMANCE FILAMENTARY COMPOSITES,

Corporate Author : OFFICE OF AEROSPACE RESEARCH ARLINGTON VA

Personal Author(s) : Rolston,John A.

Report Date : SEP 1967

Pagination or Media Count : 15

Abstract : Filament-reinforced composites consist of fibers and a matrix working together in combined action to achieve high strength, temperature resistance, or other useful properties. The strength of the composite is controlled primarily by the filament strength which theoretically may approach 10% of the elastic modulus. Materials with properties of interest include boron, aluminum oxide, and graphite. Mono-crystalline 'whisker' technology began in 1952 and has extended to include a number of elements and compounds. Much basic knowledge is needed for growth techniques, structural perfection control, and reliable means of testing. Air Force research in high-performance, fibrous composites covers basic and exploratory research through contracts from OAR, ARL, and ASD. The total work level in composites is low in comparison to work in metallurgy. The greatest need is for a low-cost production method, yielding high strength and long fibers. Other needs include interface research, new matrix materials, studies in micromechanics, and a new academic discipline in composites. (Author)

Descriptors :   (*COMPOSITE MATERIALS, AIR FORCE RESEARCH), (*FILAMENTS, REINFORCING MATERIALS), FIBERS, GLASS TEXTILES, WHISKERS(CRYSTALS), BINDERS, PLASTICS, BORON, GRAPHITE, ALUMINUM COMPOUNDS, OXIDES

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE