Nanocomposites are materials that combine a matrix, often a polymer, with nanoscale particles or fibers. These nanoparticles, which can be made from materials like carbon, silica, or metal oxides, enhance the properties of the composite, such as strength, durability, and thermal stability. The small size of the nanoparticles allows for a larger surface area, leading to improved interactions within the material. The unique characteristics of nanocomposites make them useful in various applications, including electronics, automotive, and aerospace industries. They can improve the performance of coatings, packaging, and structural components, making them lighter and more efficient while maintaining or enhancing their functionality.