Nanocomposite is a matrix to which nanoparticles have been added to improve a particular property of a material. It is either one, two or three dimensional, and smaller than 1000nanometers. Nanocomposites have different properties, such as thermal, optical, mechanical, catalytic or electrochemical. There are three kinds of matrix, 1- Polymer-matrix, 2- Meta;-matrix, 3- Ceramic-matrix.
Nanocomposites can be used in a variety of applications, including making the material of an object stronger and lighter, such as tennis rackets, spacecraft, windmill blades, plastic bottles and car parts.