Overview of Silicon Nitride

Silicon Nitride (Si₃N₄) is a critical ceramic material renowned for its exceptional mechanical properties, high-temperature resistance, and chemical stability. It is widely used in the fabrication of high-temperature structural components, bearings, cutting tools, and electronic devices. Silicon Nitride can be prepared through methods such as reaction sintering or hot pressing, resulting in two crystalline forms: α-Si₃N₄ and β-Si₃N₄, depending on the production process.

Features of Silicon Nitride

High Hardness and Wear Resistance: Silicon Nitride boasts remarkable hardness and wear resistance, making it ideal for high-performance cutting tools.

Thermal Stability: It maintains excellent mechanical properties at extremely high temperatures, with a maximum usage temperature exceeding 1200°C.

Good Chemical Stability: It shows great resistance to corrosion by most molten metals and acid-base solutions.

Low Density: Compared to metal materials, Silicon Nitride has a lower density, beneficial for reducing the weight of structural components.

Excellent Electrical Insulation Properties: It is a preferred choice for electronic packaging materials.

(Silicon nitride Si3N4 powder )

Specification of Silicon nitride Si3N4 powder

Silicon Nitride (Si3N4) Powder is a high-performance ceramic product known for its exceptional mechanical strength, thermal stability, and resistance to use and deterioration. It is extensively utilized in applications requiring durability under extreme problems, such as aerospace parts, automotive parts, cutting tools, and electronics. Below is a thorough specification overview of Si3N4 powder.

** Chemical Make-up **: The powder largely contains silicon (Si) and nitrogen (N) in a 3:4 molar proportion (Si3N4), with a regular pureness of ≥ 99%. Trace contaminations, such as oxygen (≤ 1.5%), light weight aluminum (≤ 0.05%), and iron (≤ 0.05%), might exist depending upon the manufacturing procedure.

** Physical Properties **: Silicon nitride powder has a theoretical density of 3.2– 3.3 g/cm ³ and a mass density of 0.5– 1.2 g/cm ³, relying on bit dimension and morphology. It appears as a penalty, free-flowing powder with shades ranging from white to grey. The product is non-porous and exhibits low thermal expansion (3.2 × 10 ⁻⁶/ ° C )and high thermal conductivity (15– 30 W/m · K), making it possible for superb thermal shock resistance.

** Particle Features **: The powder is available in typical bit dimensions varying from 0.1 µm to 5 µm, with particular area of 5– 15 m ²/ g. Fragment size distribution is securely regulated to make sure consistency in sintering and final product performance. Customized particle morphologies (round, granular) can be tailored for details applications.

** Mechanical Features **: Si3N4 powder sinters right into parts with phenomenal firmness (1,400– 1,600 HV), flexural stamina (700– 1,200 MPa), and crack sturdiness (6– 7 MPa · m ¹/ ²). These residential properties make it excellent for high-stress settings.

** Thermal Stability **: The powder retains mechanical integrity approximately 1,200 ° C in oxidizing ambiences and 1,800 ° C in inert environments. It resists creep and oxidation, making it ideal for turbine blades and engine elements.

** Chemical Resistance **: Silicon nitride is inert to a lot of acids, antacid, and molten metals, guaranteeing long life in harsh or high-temperature chemical processes.

** Applications **: Typical uses include bearings, cutting devices, semiconductor substrates, and wear-resistant coatings. It is likewise used in medical implants due to its biocompatibility.

** Packaging **: Provided in moisture-resistant, vacuum-sealed bags or containers to avoid contamination. Standard product packaging dimensions vary from 100g to 25kg.

** Safety and security **: Handle with typical PPE to avoid inhalation or contact. Non-toxic yet might create irritability. Shop in a dry, great environment far from inappropriate materials.

This requirements sheet supplies a thorough summary of Si3N4 powder, which can be customized to fulfill particular industrial or study demands.

(Silicon nitride Si3N4 powder )

Applications of Silicon nitride Si3N4 powder

Silicon nitride (Si3N4) powder is a high-performance ceramic product treasured for its exceptional mechanical toughness, thermal security, use resistance, and chemical inertness. These buildings make it crucial throughout varied sectors. In ** aerospace and aviation **, Si3N4 powder is used to produce generator blades, bearings, and engine components. Its capability to stand up to extreme temperatures (as much as 1400 ° C) and thermal shock, combined with reduced density, enhances gas effectiveness and toughness in jet engines and rocket propulsion systems. The ** auto market ** leverages Si3N4 for high-stress elements like radiance plugs, turbocharger blades, and webcam followers. Its thermal resistance decreases engine warmth loss, while its light-weight nature boosts gas economic situation and lowers exhausts. In ** electronic devices and semiconductors **, Si3N4 powder works as a protecting substratum, diffusion barrier, and passivation layer in incorporated circuits. Its high thermal conductivity and electrical insulation safeguard microchips from overheating and contamination. The product is also made use of in crucibles for molten steel handling in semiconductor manufacturing. For ** medical applications **, Si3N4’s biocompatibility and antibacterial homes make it optimal for orthopedic implants, oral gadgets, and spine combination cages. Its wear resistance ensures longevity in joint replacements, while its radiolucency enhances imaging accuracy. In ** energy systems **, Si3N4 elements are important in gas generators, solar panels, and wind generators, where they withstand high mechanical tons and harsh settings. It is additionally used in nuclear reactors for fuel cladding as a result of its neutron transparency. ** Industrial manufacturing ** depends on Si3N4 powder for reducing devices, extrusion passes away, and unpleasant nozzles, where firmness and thermal shock resistance expand device life expectancy. In addition, it is employed in additive production (3D printing) to create complicated, high-precision ceramic components. With recurring study, Si3N4’s role in next-gen technologies like solid-state batteries and hydrogen storage remains to expand, solidifying its standing as a foundation material in sophisticated design and sustainable development.

Company Introduction

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).

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

Shipment Methods

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

5 FAQs of Silicon nitride Si3N4 powder

What is silicon nitride (Si3N4) powder, and what are its key properties? Silicon nitride (Si3N4) powder is a high-performance ceramic material known for its exceptional mechanical strength, thermal stability, and resistance to wear and corrosion. It has a high melting point (approximately 1900°C), excellent thermal shock resistance, and maintains structural integrity in extreme temperatures. Its low density, combined with high fracture toughness, makes it ideal for demanding engineering applications.

What are the primary applications of silicon nitride powder? Si3N4 powder is widely used in industries like aerospace, automotive, and electronics. It’s used to manufacture components such as ball bearings, turbine blades, engine parts, and cutting tools due to its durability under stress and heat. In electronics, it serves as an insulating material or substrate. It’s also used in medical implants and as an additive in composites for enhanced performance.

How does silicon nitride compare to other ceramic materials? Silicon nitride outperforms many ceramics like alumina or zirconia in terms of thermal shock resistance and mechanical strength at high temperatures. Unlike metals, it doesn’t corrode or deform under extreme heat, making it suitable for harsh environments. Its unique combination of low weight, high hardness, and electrical insulation further distinguishes it from alternatives.

Is silicon nitride powder safe to handle? While Si3N4 powder is chemically inert in solid form, inhalation of fine particles can pose health risks. Proper safety measures, including gloves, goggles, and respiratory protection, should be used during handling. It should be stored in a dry, cool environment away from incompatible substances. Always follow Material Safety Data Sheet (MSDS) guidelines for safe usage.

What factors affect the cost of silicon nitride powder? The price depends on purity, particle size, and production method. High-purity grades (e.g., >99.9%) for advanced applications cost more due to complex synthesis processes like carbothermal reduction or CVD. Nano-sized powders are pricier than micron-sized variants. Bulk purchases typically reduce costs, but specialized specifications for industries like aerospace or semiconductors can increase pricing.

(Silicon nitride Si3N4 powder )