Technical Specifications:
- Material: Silicon Nitride (Si₃N₄)
- Purity: 99.9% or higher
- Particle Size: 10 µm (microns)
- Shape: Typically irregular or angular, depending on the manufacturing process
- Density: Approximately 3.2 g/cm³
- Melting Point: Approximately 1,900°C (3,452°F)
- Boiling Point: Sublimes at approximately 2,900°C (5,252°F)
Chemical Composition:
- Silicon (Si): ~75%
- Nitrogen (N): ~25%
Applications:
1. Abrasive Materials:
- Silicon Nitride (10 µm) powder is often used for fine grinding, polishing, and lapping applications. The small particle size is ideal for precision surface finishing and polishing of ceramics, metals, composites, and glass.
- Common applications include precision grinding in optics, semiconductors, and electronics where high precision and smooth surfaces are critical.
2. Ceramic Materials:
- Si₃N₄ is commonly used in advanced ceramics due to its high fracture toughness and wear resistance. The 10 µm powder is used in ceramic matrix composites (CMCs), making it suitable for aerospace, automotive, and industrial applications such as brakes, cutting tools, and bearings.
- Silicon Nitride ceramics provide excellent mechanical properties, strength, fracture toughness, and thermal stability under extreme conditions.
3. High-Temperature Applications:
- Silicon Nitride has a high melting point and is highly resistant to thermal shock. The 10 µm powder is used in applications that require thermal stability, including components exposed to high heat, such as gas turbines, heat exchangers, kiln linings, and combustion chambers.
- It is particularly useful in high-temperature industrial processes that involve extreme thermal conditions, including those in aerospace and power generation.
4. Thermal Management:
- Si₃N₄’s high thermal conductivity and low thermal expansion make it an excellent choice for thermal management applications. The 10 µm powder is used in thermal interface materials, heat sinks, and radiators for efficient heat dissipation, particularly in electronics and power electronics where maintaining optimal temperature is critical.
- This material is vital in systems where efficient heat conduction and temperature control are essential for device longevity and performance.
5. Wear-Resistant Coatings:
- The 10 µm Silicon Nitride powder is used to create wear-resistant coatings for cutting tools, machinery parts, and engine components. It provides excellent resistance to abrasion, erosion, and high friction.
- Si₃N₄ coatings are ideal for use in mining, oil and gas, automotive, and heavy machinery industries, where components experience harsh working environments and need to maintain durability over time.
6. Power Electronics:
- Si₃N₄ is used in the development of semiconductor devices in power electronics due to its high electrical insulating properties and thermal stability. The 10 µm powder can be used in substrates and components for high-power applications in electric vehicles (EVs), solar inverters, motor drives, and industrial power systems.
- The material is beneficial in power devices that need to operate under high voltages and extreme temperatures while maintaining efficient power conversion.
7. Catalyst Supports:
- Si₃N₄’s high surface area, thermal stability, and corrosion resistance make it a great material for catalyst supports in chemical processes. The 10 µm powder is used in catalytic reactors, fuel cells, and catalytic converters for processes like hydrogenation, methanation, and oxidation reactions.
- It plays an important role in chemical manufacturing, energy production, and automobile emissions control, enhancing catalyst performance and stability.
8. Nuclear Applications:
- Due to its radiation resistance and thermal stability, Silicon Nitride is used in the nuclear industry for components like fuel cladding, control rods, and reactor shielding. The 10 µm powder is often incorporated into materials exposed to high radiation and thermal conditions in nuclear reactors.
- Its durability makes it well-suited for high-temperature gas-cooled reactors and other advanced nuclear systems.
9. Supercapacitors and Energy Storage:
- Si₃N₄ is also used in energy storage devices such as supercapacitors and batteries. The 10 µm powder improves the energy density, power density, and cycle life of energy storage systems by enhancing the properties of electrodes.
- This material is ideal for electric vehicles (EVs), renewable energy storage, and backup power systems, where high-efficiency energy storage is required.
10. Research and Development:
- Silicon Nitride micron powder is extensively used in research and development for materials science, nanotechnology, energy systems, and advanced electronics.
- Researchers use Si₃N₄ for new material development, exploring its potential in advanced ceramics, semiconductors, high-performance coatings, and energy storage technologies across industries like aerospace, automotive, electronics, and energy.
Summary:
Silicon Nitride Micron Powder (10 µm, 99.9% purity) is a high-performance material known for its exceptional strength, fracture toughness, thermal stability, and wear resistance. Its small particle size makes it ideal for fine grinding, polishing, thermal management, and wear-resistant coatings. It also plays a key role in high-temperature applications, power electronics, catalyst supports, and energy storage systems. Si₃N₄’s unique properties make it indispensable in industries that require durability, high performance, and reliability under extreme conditions.
