Silicon Nitride is a kind of advanced ceramic material with high hardness, stable structure, small thermal expansion coefficient, excellent oxidation resistance and corrosion resistance, which integrates excellent thermal and chemical properties.
Main purpose:
It is mainly used in metallurgical industry, mechanical industry, chemical industry, semiconductor, aviation, atomic energy and other industries, medical artificial joints, and all-ceramic engines.
Items
Nano-Si3N4
phase content (%)
amorphous
chemical component
N(wt%)
38.5
38.5
38.5
O(wt%)
1.25
1.25
1.25
C(wt%)
0.2
0.2
0.2
Fe(ppm)
Product name:silicon nitride Place of origin:hebei, china Brand name:ledphor Molecular formula:si3n4 Cas no.:12033-89-5 Purity:99.9% Appearance:white powder Particle size:d50
Place of Origin Henan, China Brand Name GUOHAN Model Number Si3N4 Shape Lump Material Silicon Chemical Composition Si3N4 N Si Ca O C Al Fe Purity High Purity Packaging Details 1Metric Ton/Big Bag or As customers' Requirement
Granule 1-4mm 99.9%
This product possesses high purity , small and uniform particle diameters , large specific surface area , high surface activity , low loose loading density .
Nano silicon nitride power
In order to remove hydrogen in the aluminum liquid, the Silicon Nitride Ceramic hollow degassing rotor is used to feed nitrogen or argon, and the gas is dispersed by high-speed rotation,finally achieve the effect of neutralizing and discharging hydrogen. ï?¬Compared with graphite rotor, Silicon Nitride Ceramic will not be oxidized under high temperature environment, so it will not pollute the aluminum liquid, and the service life is much longer; ï?¬The property of high thermal shock resistance ensures that the degassing rotor will not break during frequent intermittent operation; Because Silicon Nitride Ceramic is of high density and high strength, it assures that degassing rotor can be reliable and stable in high speed rotation.
MF: Si3N4 Chemical Name: Silicon Nitride Powder Purity: > 99.99% APS: 40-50 µm (Size Customization possible) Form Micro powder CAS Number 12033-89-4
Silicon Nitride (Si3N4) has good high temperature strength, creep resistance and oxidation resistance. In addition, its low thermal expansion coefficient gives good thermal shock resistance compared with most ceramic materials. Silicon nitride is produced in two main ways; Reaction bonded silicon nitride (RBSN), and hot pressed silicon nitride (HPSN) and sintered silicon nitride (SSN). RBSN is made by direct reacting compacted silicon powder with nitrogen, and produces a relatively low-density product compared with hot pressed and sintered silicon nitride, however the process has only a small volume change allowing net shape forming. The HPSN and SSN material is made with sintering aids and offers better physical properties suitable for more demanding applications. Typical Silicon Nitride applications include: Bearing balls and rollers Cutting tools Valves, turbocharger rotors for engines Turbine blades Glow plugs Molten metal handling Thermocouple sheaths Welding jigs and fixtures Welding nozzles Advantages 1.High hardness 2.Wear resistance 3.High fire resistance 4.Corrosion preventive 5.Good chemical stability
Supplier: Alumina ceramics, zirconia ceramics, silicon carbide ceramics, silicon nitride ceramics
