Exploratory Development on Low-Cost Primary Fabrication Processes for Boron-Aluminum Composites.
Final rept. Jun-Nov 73,
UNITED AIRCRAFT RESEARCH LABS EAST HARTFORD CONN
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Boron fiber reinforced aluminum matrix composites can be successfully fabricated in air with total hot pressing times of ten minutes or less. These composites have been fabricated without the need for elaborate bagging or out-gassing procedures and demonstrate that significant cost savings in processing can be achieved without any sacrifice in composite performance. The process procedure, referred to as Quick Bonding, is fully described in the report along with resultant composite tensile and fatigue properties. Composite panels were fabricated in constant and nonconstant cross section configurations with composite panel dimensions exceeding those of the hot press using single and multiple step pressing procedures. Specimens exhibited axial tensile strengths of up to 290,000 psi, transverse tensile strengths of 30,000 psi and transverse tensile failure strains of over 1. Author
- Laminates and Composite Materials