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Relative density for silicon nitride (SiN) is 3.18 Silicon nitride’s Morse hardness is 9. It has a low coefficient of thermal expansion, excellent chemical stability, and excellent oxidation resistance. The material is decomposed into silicon and nitrogen at 1900. Silicon nitride has a very strong strength and is resistant to heat. Even at 1200°C, the strength of silicon nitride will not be affected. It won’t melt when heated. The material will continue to be inert until the year 1900. It can resist corrosion of nearly all organic and inorganic acids. Silicon nitride is hard and has a low coefficient of thermal extension. It also exhibits excellent thermal shock stability.
Silicon nitride properties
The product has an excellent resistance to high temperatures.
High strength for fractures
Good bending strength.
Crescendo and mechanical fatigue
You can expect high wear resistance and hardness as well impact and friction mode.
Superior resistance to thermal shock.
Thermoplastic expansion is low.
Insulator for electrical power.
High resistance to oxygenation
High resistance to chemical corrosion
What advantages does silicon nitride offer?
The low thermal expansion of silicon nitride makes it superior to other technical ceramics in terms of thermal shock resistance. It’s extremely durable, with a high melting point and excellent resistance to oxidation. It can therefore endure the toughest high temperature or high load situations.
Silicon nitride bearings are used in spacecraft’s main engines. They have been identified as being one of few ceramic materials that can resist severe thermal shocks or thermal gradients caused by oxygen and hydrogen rocket engines. This material has proven to be reliable and completely reliable through the whole space shuttle programme.
Why is silicon Nitride used?
It is used for heat engine materials and insulating materials.
Silicon nitride clays can be used for combustion chamber, mechanical sealing rings, pipe, and valve in an electromagnetic pump to convey liquid aluminum, permanent mould, and molten metal separation ring.
It has a low friction coefficient, and it is often used for high-temperature bearings. The working temperature of silicon nitride can exceed 1200 degrees Celsius, which is 2.5x higher than the working temperature of normal alloy bearings. It can also work at a speed of 10 times as fast as ordinary bearings.
A silicon nitride-ceramic with high electrical insulation and resistance to heat and cold can be used for an electric plug. It can significantly reduce engine start time, and allow the vehicle to begin quickly even in freezing weather.
High temperature resistance, good microwave permeability, high dielectric properties, as well as excellent heat strength make silicon nitride ceramics ideal for radar radomes in aircraft and missiles.
Silicon Nitride Price
Price is affected by many things, such as the demand and supply in the market and industry trends. Economic activity. Unexpected events.
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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.
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