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Product Characteristics and Application of Silicon Nitride Si3N4 Powder

The World Platinum Investment Association (WPIC) said recently that carmakers are accelerating reductions in palladium use and increased use of platinum due to concerns about Russian palladium supplies. However, it still expects a significant surplus in the platinum market this year.

Palladium is used by carmakers in tailpipe emissions systems to reduce carbon emissions.  While carmakers prefer palladium for catalytic converters, they are turning to platinum, which is cheaper than palladium, to save costs.

Russia accounts for about 25-30% of the world's palladium supply and 8-10% of its platinum supply.

There is no sign that western sanctions against Russia have restricted palladium exports since the conflict escalated in February, but as the conflict continues, more companies could boycott The Russian metal and governments could impose restrictions.

Platinum is currently trading at about $950 an ounce, about half the price of palladium.  Automakers use about 2.5 million to 3 million ounces of platinum and about 8.5 million ounces of palladium each year.

For the year as a whole, platinum supply will be 5 percent lower than in 2021 and demand 2 percent higher, with the automotive sector seeing a 16 percent increase due to increased light vehicle 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 are still very uncertain.

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.

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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


Inflationary pressures on Canadians continue to rise. The consumer-price index rose 6.7% in March from a year earlier, the biggest increase since January 1991, according to the latest figures from Statistics Canada.  

On a month-on-month basis, Canada's CPI rose 1.4 percent in March, also accelerating from February's 1.0 percent rise.  

Prices in the eight major sectors covered by the statistics continued to rise. The uptrend comes against the backdrop of continued price pressures in the Canadian housing market, widespread supply chain constraints, and geopolitical conflicts, according to CBC. A variety of factors have affected energy, commodity, and agricultural markets. Meanwhile, Canada's employment picture continued to improve in March, with the unemployment rate falling to a record low and the average hourly earnings of employees rising.  

Excluding gasoline, Canada's CPI rose 5.5 percent year on year in March.  It is also the highest since comparable data began in 1999.  

The widespread supply chain constraints and geopolitical conflicts are expected to continue to affect the prices 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.

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