Overview of Silicon Nitride

Silicon nitride (Si3N4) is a compound of silicon and nitrogen. It has high hardness, excellent wear resistance, and good thermal stability. It can withstand high temperatures without easy deformation. With a low thermal expansion coefficient and high chemical stability, it resists corrosion from many chemicals. These properties make it widely used in the fields of ceramics, semiconductors, and aerospace.

(Silicon nitride Si3N4)

Features of Silicon Nitride

Silicon nitride is difficult, that makes it immune to use and damaging. It can handle heats without melting or deforming easily, revealing excellent thermal security. It additionally has a reduced thermal growth coefficient, suggesting it doesn't broaden or get much with temperature level adjustments. Furthermore, it's chemically secure and not conveniently rusted by lots of compounds. These functions make it helpful in various applications.

Parameter table of Silicon Nitride

Property	Value
Chemical formula	(Si3N4)
Molecular weight	140.28 g/mol
Crystal structure	Hexagonal (β - phase is more common)
Density	~3.18 g/cm³
Melting point	~1900 °C (decomposes)
Thermal conductivity	15 - 30 W/(m·K)
Thermal expansion coefficient	2.5 - 3.2 × 10⁻⁶ /K
Hardness	~15 - 18 GPa (Vickers hardness)
Elastic modulus	300 - 320 GPa
Electrical resistivity	High (insulating material, resistivity > 10¹² Ω·cm)

Applications of Silicon Nitride

In the automobile sector, it is used to make engine components like cyndrical tube linings and shutoff train parts. Its high solidity and put-on resistance assurance long-lasting strength. At the same time, its thermal security aids minimize warmth transfer, consequently enhancing engine efficiency.
In the aerospace field, silicon nitride is employed in the manufacturing of wind turbine blades and various other high-temperature elements. It can endure the severe temperatures and high - anxiety problems run into throughout flight, adding to the dependability and efficiency of airplane engines.
In electronics, it functions as a dielectric material for integrated circuits. Its significant electrical insulation buildings and low thermal growth coefficient make it ideal for usage in microelectronics, where exact control of warm and electrical conductivity is vital. In addition, it is used in the production of semiconductor wafers to offer a protective and shielding layer.
In the porcelain industry, silicon nitride is used to produce high-performance ceramic tools. These tools have superb cutting performance and can preserve their intensity also at heat, making them suitable for machining complex products.

Production Method of Silicon Nitride

Direct nitridation of silicon: Silicon powder is heated in a nitrogen-containing atmosphere. The silicon reacts with nitrogen to form silicon nitride. Reaction equation is something like this: 3Si + 2N₂ → Si₃N₄. This method is relatively simple, but it's hard to control the reaction completely, and the product might have impurities.
Chemical vapor deposition (CVD): In this method, silicon - containing gases and nitrogen - containing gases are used. They react in a high-temperature environment. For example, silicon tetrachloride (SiCl₄) and ammonia (NH₃) can be used. The reaction forms silicon nitride and hydrochloric acid (HCl). The advantage of this method is that it can produce high-purity silicon nitride with good uniformity. But it needs complex equipment and high - temperature conditions.
Sol - gel method: First, a silicon - containing precursor is made into a sol - gel. Then, it's heated and treated in a nitrogen - containing atmosphere. This method can get silicon nitride with a fine - grained structure. But the process is complex and takes a long time.

Company Profile

Welcome to JatujakGuide,a leading global supplier of high-quality silicon nitride (Si₃N₄) products. We specialize in providing advanced ceramic materials that offer exceptional strength, thermal stability, and wear resistance, making them ideal for industries such as aerospace, automotive, and electronics. Our state-of-the-art manufacturing processes ensure superior product quality and consistency. With a commitment to innovation and customer satisfaction, we deliver reliable and cost-effective solutions worldwide. Whether you need silicon nitride for cutting tools, bearings, or thermal management applications, trust [Your Company Name] to meet your needs. Partner with us for high-performance materials and expert support.

If you have any questions, please feel free to contact us(nanotrun@yahoo.com).

Storage Condition of of Silicon Nitride

Stored it in a dry and ventilated environment.It should also be stored at room temperature, avoiding high-temperature and high-humidity conditions to prevent hydrolysis. Additionally, it should be stored in a clean place, away from contaminants and corrosive substances.

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Silicon Nitride

1. What is silicon nitride?
   Silicon nitride is a compound made of silicon and nitrogen. It's a hard, heat - resistant material with great properties.
2. How is it made?
   It can be made by direct nitridation of silicon powder, chemical vapor deposition, or the sol - gel method.
3. Where is it used?
   It's used in automotive engine parts, aerospace components, electronics, and high - performance ceramic tools.
4. What are its key properties?
   It's hard, wear - resistant, heat - stable, has a low thermal expansion, and is chemically stable.
5. How should it be stored?
   Store it in a dry, ventilated place at room temperature, away from moisture and contaminants.