Accession Number : AD0779058

Title :   Investigation of Boron Carbide Ribbon-Reinforced Titanium Composites.

Descriptive Note : Final rept. 3 Feb 73-2 Feb 74,

Corporate Author : CABOT CORP BILLERICA MASS

Personal Author(s) : Hordon,Monroe J.

Report Date : 29 MAR 1974

Pagination or Media Count : 55

Abstract : Boron carbide ribbon-reinforced titanium composites were fabricated by a masked deposition and lamination process. B4C content was varied in the range 20 - 40 percent, and the ribbon width/thickness (w/t) ratio was varied from 120 - 2000. Matrix alloys investigated included un-alloyed Ti A55 and Ti-6Al-4V. The mechanical behavior was examined in the temperature range 70F - 900F. Tensile strength and modulus increased with B4C content, and decreased with temperature. Effective mechanical isotropy was achieved for composites containing uniaxially aligned ribbons with a w/t radio >325. (Author)

Descriptors :   *Fiber reinforced composites, *Boron carbides, *Titanium alloys, Laminates, Fabrication, Aluminum alloys, Vanadium alloys, Fracture(Mechanics), Diffusion bonding, Tensile properties, Elastic properties

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE