Accession Number:

AD0432203

Title:

REVIEW OF RECENT DEVELOPMENTS. FIBER-REINFORCED MATERIALS,

Descriptive Note:

Corporate Author:

BATTELLE MEMORIAL INST COLUMBUS OHIO DEFENSE METALS INFORMATION CENTER

Personal Author(s):

Report Date:

1964-03-06

Pagination or Media Count:

3.0

Abstract:

The stress-strain behavior of composites made by infiltrating bundles of W wire with molten Cu was reported by workers at NASA Lewis Research Center. NASA Lewis Research Center conducted a study to determine the effect of alloying the matrix on the tensile properties and microstructure of W-fiber-reinforced composites. Composites were made of W wires infiltrated with binary alloys of Cu with Al, Cr, Co, Nb, Ni, Ti, and Zr. In addition, selected Ni-base and Cobase alloys were used as matrices. Analysis of composites made by infiltrating alpha-Al2O3 whiskers with molten Ag showed that between 80 and 97 of the whiskers strength can be utilized at room temperature. At temperatures exceeding 90 of the melting point of Ag, the utilization factor is 30 to 60. A composite made from Rene 41 reinforced with fine alpha-Al2O3 was made with no apparent damage to the whiskers as a result of exposure to the liquid alloy during fabrication. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE