Nanomaterials can be roughly divided into four categories: nano powder, nano fiber, nano film and nano block. Among them, nano powder has the longest development time and the most mature technology, which is the basis for the production of other three types of products.
Nanoceramics The nano ceramic materials developed by using nanotechnology are used to modify the existing ceramics by using nano powders. By adding or generating nano particles, whiskers, chip fibers, etc. into the ceramics, the grains, grain boundaries, and the combination between them reach the nano level, which greatly improves the strength, toughness and superplasticity of the materials. It overcomes many shortcomings of engineering ceramics, and has an important impact on the mechanical, electrical, thermal, magneto-optical and other properties of materials, opening up a new field of application to replace engineering ceramics. With the wide application of nanotechnology, nano ceramics have emerged, hoping to overcome it. The brittleness of ceramic materials makes ceramics flexible and machinable like metals. British material scientist Cahn pointed out that nano ceramics are a strategic way to solve the brittleness of ceramics. Nanometer high temperature resistant ceramic powder coating material is a kind of material that forms high temperature resistant ceramic coating through chemical reaction
Nano powder, also known as ultramicro powder or ultra-fine powder, generally refers to the powder or particle with the particle size below 100 nm, which is a solid particle material in the intermediate state between atoms, molecules and macro objects. Can be used for: high-density magnetic recording materials; Wave absorbing stealth materials; Magnetic fluid materials; Anti radiation materials; Monocrystalline silicon and polishing materials for precision optical devices; Microchip thermal conductive substrate and wiring material; Microelectronic packaging materials; Optoelectronic materials; Advanced battery electrode materials; Solar cell materials; High efficiency catalyst; High efficiency combustion supporting agent; Sensitive element; High toughness ceramic materials (unbreakable ceramics, used for ceramic engines, etc.); Human body repair materials; Anti cancer agents, etc.
Nanofibers refer to linear materials with nanometer diameter and large length. It can be used for: micro wires, micro optical fibers (important components of future quantum computers and photonic computers) materials; New laser or light-emitting diode materials, etc. Electrospinning is a simple method to prepare inorganic nanofibers.
Nanofilm Nanofilm can be divided into granular film and dense film. Granular film is a kind of film in which nano particles stick together and there are very small gaps between them. Dense film refers to the film with dense layer but nanometer grain size. Can be used for: gas catalytic (such as automobile exhaust treatment) materials; Filter material; High density magnetic recording materials; Photosensitive materials; Flat panel display materials; Superconducting materials, etc.
Nanoblock Nanoblock is a kind of nanocrystalline material obtained by high-pressure molding of nano powder or controlled crystallization of metal liquid. The main applications are: ultra-high strength materials; Intelligent metal materials, etc.