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compositematerials-170302065645.pdf

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  COMPOSITE MATERIALS 1  The world of materials PE, PP PA (Nylon) Polymers, elastomers Butyl rubber Neoprene Polymer foams Metal foams Foams Ceramic foams Glass foams   Woods Natural materials Natural fibres: Hemp, Flax, Cotton GFRP CFRP Composites KFRP Plywood   Alumina Si-Carbide Ceramics, glasses Soda-glass Steels Cast irons Al-alloys Metals Cu-alloys Ni-alloys Ti-alloys 2  Definition ã A broad definition of composite is: Two or more chemically distinct materials which when combined have improved properties over the individual materials . ã The constituents retain their identities in the composite; that is, they do not dissolve or otherwise merge completely into each other, although they act in concert. 3  Advantages of Composites ã Light in weight ã Strength-to-weight and Stiffness-to-weight are greater than steel or aluminum ã Fatigue properties are better than common engineering metals ã Composites cannot corrode like steel ã Possible to achieve combinations of properties not attainable with metals, ceramics, or polymers alone 4
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