What are the functions of the matrix and reinforcing phases

What are the functions of the matrix and reinforcing phases in general composites?

Solution

Matrix and its function:

There are three main types of matrices: polymer, metal, and ceramic. Matrices hold and protect the fibers from environmental and physical damage. Keeping the fibers separated decreases cracking and redistributes the load equally among all fibers. Thus, the matrix contributes greatly to the properties of the composites. The ability of composities to withstand heat, or to conduct heat or electricity depends primarily on the matrix properties since this is the continuous phase. Therefore, the matrix selection depends on the desired properties of the composite being constructed.

Reinforcements and its finctions:

The role of the reinforcement in a composite material is fundamentally one of increasing the mechanical properties of the neat resin system. All of the different fibres used in composites have different properties and so affect the properties of the composite in different ways.