A composite material is an anisotropic,
heterogeneous medium, made by combining two or more materials
with differing properties. Properties of the composite are different
do not merge completely into each other and can be physically
identified alongwith the interface between them. The properties
of the interface also contribute to the properties of the composite.
Present day engineering materials must
combine good mechanical, chemical, electrical and thermal properties,
apart from having good aesthetic characteristics. Several of
these properties are expected in a single material when very
high mechanical properties were required. The need for composites
arose when marked increase in performance of metals could no
longer be achieved at reasonable developmental cost.
Composite is the material for the future
and finds application in almost each and every industry.
ADVANTAGES OF COMPOSITES V/s CONVENTIONAL