What does the term composite material mean?

What does the term composite material mean?

• A. A material that is always metal
• B. Being made of 2 or more substances creating unique characteristics and properties when combined
• C. A material with uniform properties
• D. A material formed from natural fibers only

Answer: (B)

A composite material is formed when two or more substances with different properties are combined to produce a material with characteristics that are different from, and often better than, either material alone. Usually one substance acts as a matrix that binds a reinforcing material, and together they give you a product that can be stronger, stiffer, or lighter than the individual components. For example, fibreglass combines glass fibres with a polymer resin, while reinforced concrete uses steel bars within concrete. This concept isn’t limited to metals, and it doesn’t require uniform properties or natural fibers only—the key idea is the combination of distinct substances to create a material with tailored, enhanced performance.

A composite material is formed when two or more substances with different properties are combined to produce a material with characteristics that are different from, and often better than, either material alone. Usually one substance acts as a matrix that binds a reinforcing material, and together they give you a product that can be stronger, stiffer, or lighter than the individual components. For example, fibreglass combines glass fibres with a polymer resin, while reinforced concrete uses steel bars within concrete. This concept isn’t limited to metals, and it doesn’t require uniform properties or natural fibers only—the key idea is the combination of distinct substances to create a material with tailored, enhanced performance.