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Silicon Nitride was discovered during the late 19th century. However, it’s difficult to manufacture because of its covalent bonds. A type of engineering ceramic with excellent chemical and thermal stability, silicon nitride is high in strength and hardness. The polycrystalline form of Silicon Nitride is a type of composite made of single crystals (silicon nitride) that are embedded in either amorphous, partially crystalline or crystalline glass phases. These properties are not dependent only on the intrinsic properties silicon nitride single-crystals. They also depend on the size, morphology, and volume fraction of the glass phase at silicon nitride’s grain borders. Si3N4 can be used for both traditional and more innovative applications. Si3N4 has many advantages, including its light weight, high wear resistance, excellent bending strength and durability. This makes Si3N4 an attractive alternative to conventional materials like stainless steel and tungsten carbide.
Automobile industry.
The automotive sector is one of the most important uses of sintered silicone nitride. For example, there are electric plugs in diesel engines that provide faster start-up, precombustion chambers that produce less emissions, lower start-up, and more noise and turbochargers that reduce engine lag. For spark ignition engines silicon nitride helps reduce wear rocker pads and turbocharger turbines reduce engine lag. Exhaust control valves increase acceleration.

An all-ceramic silicon nitride bearing does not just have ceramic components, it also has a ceramic hybrid bearing. For example, the ceramic ball and steel seat rings are made of silicone nitride. The silicon nitride clays offer superior shock resistance to other ceramics. Ball bearings constructed from silicon nitride ceramics have high-performance bearings. NASA’s main engine uses silicon-nitride bearings. Because silicon nitride balls bearings are more durable than metal, they have less contact with the tracks. This is a better alternative to traditional metal bearings. They can lower friction by as much as 80%, improve service life by up 3-10 times, speed up by 80%, decrease weight by 60% and run in inadequate lubrication. Silicium nitride is 79% lighter that tungsten caride balls. Silicon nitride bearings are used in automotive bearings of high quality, as well as industrial bearings. They can also be used for racing, cycling, skateboarding, skateboarding, and roller skating. These bearings can be used in areas where metals cannot be used due to corrosion.

High-temperature material.
Since long, silicon nitride is used for high temperatures. Particularly, silicon nitride has been found to be one of the few integral ceramic material that is capable of withstanding severe thermal shocks as well as thermal gradients created by hydrogen / oxygen rocket engines. NASA scientists employed advanced rapid prototyping technology in order to produce one-inch combustion chamber / nozzle (thruster), assemblies. Five cycles were run on the thruster with hydrogen/oxygen propellant. The last cycle was a five-minute one at 1320°C.

Health profession.
There are many orthopedic uses for silicon nitride. It can be substituted for PEEK and titanium in spinal fusion devices. The materials’ strength, durability, reliability, and resistance are significantly higher than those of PEEK (polyether ketone) and titanium. Some components of the material are antibacterial, antifungal and antiviral.

Tools for metal cutting and welding.
It is an ideal material for the cutting of tools because of its hardness, thermal stability, wear resistance and durability. It is particularly recommended to high-speed cast iron machining. Sintered silicon Nitride can be used to machine cast iron, nickel-based alloys, and hard steel at 25 times the speed of conventional materials, such as tungsten caride. Manufacturing output can be greatly affected by the quality of cutting tools. The face milling process of gray cast steel with silicon nitride can reduce the cost per part by up to 50%, allows for a faster cutting speed and enables you to increase the tool’s life.

Electronic Industry.
Silicon nitride has been used to electrically isolate structures and as an adhesive in integrated circuit manufacturing. Silicon nitride is an excellent passivation material for microchips. It has a much better diffusion barrier than silicon dioxide to both water molecules and sodiumions, which are two of the most common sources of corrosion and instabilities in microelectronics. It can be used in an analog chip capacitor as a dielectric to separate polysilicon layer.

Silicon nitride Price
Price is affected by many things, such as the demand and supply in the market and industry trends. Economic activity and market sentiment are also important.
For the most recent Silicon nitride price please send an inquiry to receive a quotation. (brad@ihpa.net)

Silicon nitride Supplier
Technology Co. Ltd. (), is a respected si3N4 manufacturer, and si3N4 provider. It has over twelve years’ experience. All of our products are available for shipment worldwide.

Feel free to email us for a high-quality Si3N4 Powder. (brad@ihpa.net)