Molybdenum disilicide MoSi2 is a kind of intermediate phase with the highest silicon content in Mo-Si binary alloy system, and it is a Dalton type intermetallic compound with fixed composition. It has the dual characteristics of metal and ceramic, and it is a kind of high temperature material with excellent performance. MoSi2 has good oxidation resistance at high temperature, and the oxidation resistance temperature is as high as 1600℃, which is similar to that of SiC. It has moderate density (6.24g/cm3), low thermal expansion coefficient (8.1 × 10^-6 K^-1), good electrothermal conductivity, and ceramic-like hardness and brittleness below the higher brittle-ductile transition temperature (1000℃). It shows metal-like soft plasticity above 1000℃. MoSi2 is mainly used as heating element, integrated circuit, high temperature oxidation resistance coating and high temperature structural material. In MoSi2, molybdenum and silicon are bonded by metal bonds, silicon and silicon are connected by covalent bonds, and molybdenum disilicide is a gray tetragonal crystal. It is insoluble in general mineral acids (including aqua regia), but soluble in a mixture of nitric acid and hydrofluoric acid. It has good oxidation resistance at high temperature and can be used as a heating element for working in oxidation atmosphere at high temperature (< 1700 ℃).
What is Molybdenum disilicide used for? Molybdenum disilicide is used in high temperature anti-oxidation coating materials, electric heating elements, integrated electrode films, structural materials, reinforcers of composites, wear-resistant materials and bonding materials of structural ceramics. Specifically: Energy chemical industry: electric heating elements, high temperature heat exchangers of atomic reactor devices, gas burners, high temperature thermocouples and their protective tubes, melting vessel crucibles (for melting sodium, lithium, lead, bismuth, tin and other metals). Microelectronics industry: MoSi2 and other refractory metal silicide Ti5Si3, WSi2, TaSi2 are important candidate materials for gate and interconnect films of large-scale integrated circuits. Aerospace industry: as a high temperature anti-oxidation coating material has been extensive and in-depth research and application. Especially as the material of turbine engine components, such as blades, impellers, burners, tail nozzles and sealing devices. Automotive industry: turbocharger rotors, valve bodies, spark plugs and engine parts for automobiles.
Which restrictions does MoSi2 have? MoSi2 shows low toughness at temperatures below 1000 °C, which means that the material is very brittle at room temperature and it becomes plastic only at higher temperatures. And it shows poor creep resistance at temperatures above 1200 °C.
Molybdenum disilicide MoSi2 Powder Price The price is influenced by many factors including the supply and demand in the market, industry trends, economic activity, market sentiment, and unexpected events. If you are looking for the latest MoSi2 powder price, you can send us your inquiry for a quote. ([email protected])
Molybdenum disilicide MoSi2 Powder Supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials including silicon powder, nitride powder, graphite powder, zinc sulfide, calcium nitride, 3D printing powder, etc. If you are looking for high-quality MoSi2 powder, please feel free to contact us and send an inquiry. ([email protected])
