ultra thin nontoxic medical Si3N4 ceramic knitdowns needle
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Silicon Nitride Ceramic:
Ceramic matrix composites (CMC) consist of two parts. Ceramic fiber and ceramic matrix ceramic matrix composites have many advantages, such as low density (only 1/4~1/3 of superalloy), high hardness, high temperature resistance, corrosion resistance, Anti-oxidation ceramic matrix composites can work at temperatures up to 1650 ° C, so it is an ultra-high temperature composite material. However, ceramic materials are generally brittle, limiting their application in the field of thermal structural materials by introducing fiber materials into ceramic materials. Continuous fiber reinforced ceramic matrix composites can effectively solve the above problems, greatly improve the strength and improve the brittleness and increase the use temperature of materials. Currently, the widely used ceramic matrix composites have SiC fiber reinforced Silicon Carbide Ceramic base (SiC/ SiC) composites and carbon fiber reinforced silicon carbide ceramic based (C/SiC) composites, while SiC fiber reinforced Sic Ceramic matrix composites are the most widely studied, their use temperature up to 1450 ° C, high temperature strength and weight Light, corrosion resistant, and many advantages improve engine performance, so it can be used in long-life aero engines. Silicon nitride composite: high temperature resistant, low dielectric, creep resistant radome silicon nitride film for anti-oxidation high performance missiles: excellent optoelectronic properties, high chemical stability, resistance to impurity diffusion and moisture infiltration High-strength silicon nitride ceramic ball: high hardness, high wear resistance, corrosion resistance, high temperature resistance, light weight, high processing precision, self-lubricating, insulation is the preferred material for ceramic bearings and hybrid ceramic ball bearings.
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
Q: Are you trading company or manufacturer ?
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.
