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What is Silicon Nitride Si3N4 Powder?

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Silicon Nitride Powder Si3N4 Introduction Silicon nitride This is an organic substance. The chemical formula for it is Si3N4. Its relative molecular mass (RMM) is 140.28. It can be gray or off-white.

Silicon Nitride Si3N4 Pulp Powder – Physical and Chemical Properties
Si3N4 has high temperature insoluble properties. It is highly resistant to high-temperature creep. Hexagonal system. The crystals of the Hexahedral system are hexagonal. Si3N4 is dense by reaction sintering. Si3N4 is about 1.8 to 2.7 g/cm3. Si3N4 is density by hot-pressing. It is 3.12-3.22g/cm3. Mohs hardness (99.5), Vickers hardness (2200) and microhardness (32220MPa) are all 99.5. It is known as the 1900 melting point (under pressure). The melting point is 1900 under pressure. It has a specific heat capability of 0.71J/g*K. The heat of formation for a given material is 751.57kJ/mol. The thermal conductivity of the material is 2-155 W/(m*K). The linear expansion coefficient is 2.8~3.2×10-6/(20~1000).
It is insoluble in water. Insoluble in water. Temperature at which oxygenation starts in the air is 1300 1400 At 20°C, the specific volume resistance of air is 1.4×105*m and at 500 it’s 4×108*m. The elastic modulus measures 2842046060MPa. It has a compressive force of 490MPa when it is react sintering. Calcium diazide is formed when it reacts to dicalcium diazide at 1285. At 600, it is reduced to a transition metal and released nitrogen oxides. The bending strength of the silicon halide is 147 MPa. This can be achieved by reacting silica halide and ammonia with silicon powder. This material has a resistance of between You can use it as a high-temperature ceramic material.
Other than hydrofluoric acid or hot phosphoric acids, silicon nitride doesn’t react with any other inorganic substances and is highly resistant to corrosion.
Silicon Nitride Si3N4 Powder Properties
Additional Names Silicon (IV), nitride
No. 12033-89-5
Formula compound Si3N4
Molecular Weight 140.28
Appearance From white powder to grey powder
Melting Point 1900degC
Boiling Point N/A
Density 2.2-3.5g/cm3
Solubility in water Unsolvable
Get the exact Mass 139.943
Silicon Nitride Si3N4 Powder CAS 12033-89-5

Silicon Nitride Si3N4 Pulverization
High thermal stability and oxidation resistance are some of the benefits that silicon nitride ceramic materials offer. The covalent compound silicon nitride has high bond strengths and can form oxide films in the air. It also exhibits good chemical stability. It is resistant to oxidation below 1200. To protect it, a protective layer can be created at 12001600. While silicon nitride does not become infiltrated, or corroded from aluminum, lead or zinc as well as silver, brass and nickel, it can still be affected by nickel-chromium alloy, magnesium, and other liquids.
Ceramic materials made of silicon nitride can be used for their applications high-temperature engineering components , The metallurgical Industry: Advanced Refractory , Corrosive-resistant components Sealing parts in the chemical, machining, and cutting industries.
Silicon nitride is a strong bonding material for silicon carbide, silicon dioxide, and thorium oxide. It can also be used to create bonds that allow you to alter the proportions.
Additionally, silicon nitride may be used in solar cells . Once the silicon-nitride nitride is coated using the PECVD technique, it can be used for antireflection to reduce reflections of incident light. However, during the deposition process, the reaction product’s hydrogen atom enters silicon nitride wafer and silicon film. It plays a function of a passivation problem. There is no set ratio for silicon nitride and silicon nitrogen, but it fluctuates depending on different technological conditions. Different atomic proportions are associated with different properties.
You can use it in Gas turbines and aircraft engines at ultra high temperatures, as well as electric furnaces , etc.

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