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Product Characteristics and Application of Silicon Nitride Si3N4 Powder

For billionaires, the new crown epidemic is like a 'gold rush'! The Deutsche Presse-Agentur said on the 17th that in 2022, the wealth held by the world's top ten richest people will jump from $700 billion to $1.5 trillion, an average daily increase of $1.3 billion, an increase that exceeds the past 14 years. These 10 people The wealth held by the world’s poorest 3.1 billion people is six times greater than that of the world’s poorest 3.1 billion people. The 10 richest Germans have increased their assets from the equivalent of about 125 billion euros to about 223 billion euros since the start of the Covid-19 pandemic, An increase of about 78%. This wealth is roughly equivalent to the total wealth of the poorest 40% of the population, or 33 million Germans.
In the future, demand for Silicon Nitride Si3N4 Powder,Overview of Silicon Nitride Si3N4 Powder,Silicon nitride Si3N4 powder application,The price of silicon nitride Si3N4 powder,Silicon Nitride Si3N4 Powder Supplier will grow as fast as the wealth of the rich during the pandemic.

Overview of Silicon Nitride Si3N4 Powder

Silicon nitride Si3N4 Powder is a compound of silicon and nitrogen. Si3N4 is the most thermodynamically stable in silicon nitride. It is a white, high melting solid, relatively chemically inert, attacked by dilute HF and hot H2SO4. It works very hard (MoHS is 8.5) and has high thermal stability.


Silicon nitride is an inorganic substance with the chemical formula Si3N4. It is an important structural ceramic material with high hardness, lubricity and wear resistance, and is an atomic crystal; it is resistant to oxidation at high temperatures. And it resists the effects of cold and cold, heats into the air to 1000°C or more, then cools sharply and then heats, it won't break. It is because of the excellent properties of silicon nitride ceramics that they are often used to manufacture mechanical components such as bearings, air turbine blades, mechanical seals, permanent molds, etc. If silicon nitride ceramics are resistant to high temperature and difficult to transfer, the heat absorption surface of engine components can be improved, which not only has good quality, but also saves fuel and improves thermal efficiency.

Product Characteristics of Silicon Nitride Si3N4 Powder

Low density, high temperature strength, excellent thermal shock resistance, excellent wear resistance, good fracture toughness, mechanical fatigue and creep resistance, good oxidation resistance.

Silicon nitride Si3N4 Powder is difficult to produce as a bulk material - it cannot be heated above 1850°C because it breaks down into silicon and nitrogen, which is well below its melting point. Therefore, the application of traditional hot pressing sintering technology is problematic. Bonding of silicon nitride powders can be achieved at lower temperatures by adding additional materials (sintering aids or "binders") that typically cause some degree of liquid phase sintering. A cleaner alternative is to use spark plasma sintering, where very rapid (several seconds) heating occurs by pulses of electrical current through the compacted powder. Dense silicon nitride compacts were obtained by this technique at temperatures of 1500–1700 °C.

Silicon nitride Si3N4 powder application

Manufacturing structure: such as metallurgy, machinery, aviation, aerospace.

Surface treatment of metals and other materials: such as molds, tools, turbine blades.

Composite materials: such as metals, ceramic and graphite composites, rubber, plastics

Colorless and transparent self-lubricating and wear-resistant nanoparticle film for mobile phones;

Advanced surface protection, such as automotive;

jack connector;

Ball valves and parts;

Corrosion resistant turbine;

Metallurgy, aviation, chemical, energy, machinery and other industries wear ball/roller bearings, sleeves, valves and other parts;

Manufacture of cutting tools, dies, cylindrical wall coatings, turbine rotors and blades;

Manufacture of composite materials such as ceramics, graphite, rubber, metals, adhesives, etc.

Nozzles, rocket and missile nozzles.

The price of silicon nitride Si3N4 powder

The price of silicon nitride Si3N4 powder will change randomly with the production cost, transportation cost, international situation, exchange rate and the supply and demand of the silicon nitride Si3N4 powder market. Tanki new material Ltd. aims to help industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for Silicon Nitride Si3N4 Powder, please feel free to send an inquiry to get the latest price of Silicon Nitride Si3N4 Powder.

Silicon Nitride Si3N4 Powder Supplier

As a global supplier of silicon nitride Si3N4 powders, Tanki New Materials Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineered materials. The company has successfully developed a series of powder materials (titanium nitride, silicon nitride, titanium nitride, etc.) high-purity targets, functional ceramics and structural devices, and provides OEM services.

Silicon Nitride Properties
Other Namessilicon (IV) nitride, a-Si3N4, SiN, trisilicon tetranitride, Si3N4 powder
CAS No.12033-89-5
Compound FormulaSi3N4
Molecular Weight140.28
AppearanceWhite to Gray Powder
Melting Point1900 °C
Boiling PointN/A
Density2.2-3.5 g/cm3
Solubility in H2OInsoluble
Electrical Resistivity11 to 12 10x Ω-m
Specific Heat720 to 800 J/kg-K
Poisson's Ratio0.24 to 0.27
Thermal Conductivity12 to 31 W/m-K
Thermal Expansion2.5 to 3.2  µm/m-K
Young's Modulus140 to 310 GPa
Exact Mass139.943 g/mol

The resurgence of the global COVID-19 pandemic and the impact of the Russia-Ukraine conflict continued to cause high volatility in commodity prices. Stubbornly high inflation and rising commodity prices are likely to influence each other and thus push each other higher. The price of the Silicon Nitride Si3N4 Powder,Overview of Silicon Nitride Si3N4 Powder,Silicon nitride Si3N4 powder application,The price of silicon nitride Si3N4 powder,Silicon Nitride Si3N4 Powder Supplier may not decrease significantly in the short term.

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