New materials refer to newly developed or developing structural materials with excellent properties and functional materials with special properties.Structural materials mainly utilize their mechanical properties such as strength, toughness, hardness and elasticity.For example, new ceramic materials, amorphous alloys (metallic glass) and so on.Functional materials mainly utilize their electrical, optical, acoustic, magnetic, thermal functions and physical effects.In recent years, new materials studied and developed in the world mainly include new metal materials, fine ceramics, optical fibers and so on.