Authors
Abstract
In the present study, traditional and hybrid composites were prepared by Hand lay-up
molding and investigated. The composites constituents were unsaturated polyester resin
as the matrix, 3% and 6% volume fractions of carbon fibers as reinforcement and 3% of
Al2O3, Al, Cement and local Gypsum (calcium sulfate anhydrate CaSO4) as filler
particles. The investigated physical properties were density, porosity while the
mechanical properties were tensile properties, bending modulus of elasticity. The
experimental results showed that increased volume fraction of carbon fibers to (6%) led
to increase in physical properties (density, porosity. As for the mechanical properties,
carbon fiber composites and (3% carbon fibers/Al2O3)-contained hybrid composites gave
the higher tensile and fracture strength, carbon fiber then gypsum composites gave the
higher bending modulus.
Keywords
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