Accession Number : AD0880618

Title :   Development of Whisker-Reinforced Light Alloys.

Descriptive Note : Final rept. 5 Jun 69-5 Oct 70,

Corporate Author : ARTECH CORP FALLS CHURCH VA

Personal Author(s) : Hermann, Robert A. ; Lare, Paul J. ; Ordway, Fred ; Hahn, Henry

Report Date : NOV 1970

Pagination or Media Count : 46

Abstract : The objectives of the program were to fabricate and characterize magnesium alloy/alpha-SiC whisker composites and investigate methods for producing titanium/SiC whisker composites. Magnesium alloy composites were consolidated by spark sintering and two different liquid phase hot pressing techniques. Whisker alignment was produced by extrusion of camphene infiltrated green bodies prior to consolidation or by subsequent hot solid state extrusion. Hot pressing with the matrix almost entirely liquid gave AZ31B alloy/alpha-SiC composites with most experiments with titanium and titanium alloy/alpha-SiC whisker composites showed the whiskers to be degraded in each case. A barrier coating of CeS, applied by rf sputtering to SiC in titanium matrices, appeared possibly beneficial. (Author)

Descriptors :   *REINFORCING MATERIALS), *MAGNESIUM ALLOYS), (*WHISKERS(CRYSTALS), (*COMPOSITE MATERIALS, (*TITANIUM ALLOYS, COMPOSITE MATERIALS), (*TITANIUM, COMPOSITE MATERIALS), WHISKERS(CRYSTALS), REINFORCING MATERIALS, SILICON CARBIDES, SINTERING, HOT PRESSING, ALIGNMENT, BARRIER COATINGS, CERIUM COMPOUNDS, SULFIDES.

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE