IPDB › China Industry › Metallurgy, Mineral & Energy
China, Chinese Silicon Nitride Si3n4 Board Customized1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Ceramic MaterialNitride CeramicsSi3n4 Ceramic BarSilicon Nitride Bar
Shanghai Yunnuo Industrial Co., Ltd.
Preview:
Product Description Si3n4 ceramicsSilicon nitride has very good comprehensive properties, such as very high strength, toughness, excellent abrasion resistance and chemical resistance, high thermal conductivity and low thermal expansion coefficient,which make it have good thermal shock resistance and stable performance. Due to these good comprehensive properties and relatively low density, silicon nitride materials can meet the highest quality requirements in applications. Typical applications include: High-grade refractory crucibleBearings and wire drawing diesWelding nozzle and positioning pinCutting toolsThermocouple protective sleeveItemUnitValueDensityg/cm33.2Bending strengthMPa750Compressive strengthMPa3,800Elastic ModulusGPa290Fracture toughnessMPam1/26.7Weber coefficientM15Vickers hardnessHV0.51,700Linear expansion coefficient10-6K-12.8Thermal conductivityW/mK20Resistance to thermal shock (water cooling)TC750Maximum use temperatureC1,300Volume resistance, 20 oCΩcm>1014Dielectric strengthV/m10×106 The silicon nitride crucible is sintered by air pressure, and has good resistance to acid and weak alkaline corrosion. For example, boiled hydrochloric acid, aqua regia, sulfuric acid, sulfuric acid and aluminum hydroxide solution with a concentration below 25%. The silicon nitride cannot be corroded, the dense silicon nitride has good oxidation resistance, and can still be used stably in an oxidizing atmosphere below 1400 ° C. The silicon nitride material also has good stability to metal melts and is not wetted, such as molten metals zinc, gold, silver, aluminum, cadmium, indium, lead, bismuth,gallium, germanium, etc. and their alloys such as yellow Copper, hard aluminum, nickel silver, etc. all have good corrosion resistance.
Purchasing Request
Note: Send your purchase request, and we will screen suppliers or manufacturers for you free of charge...