machinable Si3N4 ceramic custom shape chunk block
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Silicon Nitride Ceramic:
Silicon Nitride Ceramics are mainly classified into two types: metal and non-metal compounds and non-metal compounds. The former such as tungsten, molybdenum, niobium, tantalum, vanadium, chromium, titanium, zirconium and other refractory metals and rare earth metal boride, carbide, nitride, silicide, phosphide and sulfide; the latter such as boron carbide, Silicon carbide, boron nitride, silicon nitride, boron phosphide, silicon phosphide, and the like. The latter has extremely important applications and can be used as high temperature refractories (such as abrasives, molds, nozzles, high temperature thermowells), heat resistant materials (such as rocket structural components, nuclear engineering materials, electric heating elements), electrical materials ( Such as high temperature thermocouples, ignition electrodes), but also used as chemical resistant materials and hard materials. The heat resistant polymer can be used as a high temperature resistant film insulating material, a high temperature resistant fiber, a high temperature resistant coating, a high temperature resistant adhesive, and the like. According to the time of high temperature resistance, it is divided into instant high temperature resistant materials and long time high temperature resistant materials. The high temperature resistant sleeve can withstand a few seconds to a few minutes at 1000 to 10000 °C. The ablative material is also a high temperature resistant material. For example, at 300 to 600 ° C, it can maintain its mechanical strength, chemical resistance and the like in the air.
properties:
High hardness, high strength, wear resistance, corrosion resistance, high temperature(1200°), good thermal diffusivity, good thermal shock resistance(avoid the temperature changing rapidly), good insulativity, low density. The comprehensive properties are best in most of structure ceramic.
Data Sheet↓
Color: Black Grey
Density: ＞3.2g/cm3
Hardness: HRA90
Vickers Hardness (Hv50): ＞1550 HV0.5
Modulus of Elasticity: 290Gpa
Flexural Strength: ＞600Mpa
Compressive Strength: 2500Mpa
Modulus of Elasticity(25°C): 65Gpa
Fracture toughness:＞6.0 Mpam1/2
Maximum Use Temperature: 1200°C
Thermal Conductivity:15-20 W(m.K)
Thermal Expansion Coefficient: ＞3.1 10-6/°C
Thermal Shock Resistance: 500 △T°C
Special Heat Capacity: 700 KJ/kg.K
Dielectric Strength: 1 KV/mm
Dielectric Constant: er
Volume Resistivity(20°C): 1.0*10(12)Ω.cm
Application industry:
Machinery, electronic, semiconductor, chemical, petroleum, smelt.
Specific application:
Welding shaft, electronic substrate, plunger, nozzle, slide guide, diesel parts, metal molding, shaft wheels etc.
Why Choose Us? 1.12 years of professional production industrial ceramics factory 2.High quality products with low price 3.High precision parts with lowest tolerance 4.Short time for production 5.Has a group of experienced, professional and efficient R&D team 6.Has a good reputation in China and abroad. 7.MOQ is not limited, small quantity is welcome.
8.Vigorous team and good after-sales service
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FAQ
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A: We are factory.
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A: Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.
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A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
