Design & Technology
Composite materials are formed by combining a reinforcing material such as wood pulp, and a bonding agent, such as glue. The wood pulp is made from the waste from cutting solid wood. MDFMDF: Medium Density Fibreboard - a type of engineered wood made of compressed wood and fibre particles held together with glue. and GRPGRP: Glass-Reinforced Plastic - a strong and versatile material made by combining a plastic (usually polyester resin) with fibres made of glass. are examples of composite materials.
Remember: Alloysalloy: An alloy is a compound of two or more elements, at least one of which is a metal. are not composite materials.
Ceramics are made from clay, sand and feldsparfeldspar: A very common group of hard, crystalline minerals containing silicon.. These materials are ground to a fine powder, mixed together and fired at high temperatures (700-2000°C).