verview of Silicon Carbide Micropowder in Industry
Silicon carbide (SiC) micropowder is a versatile material widely used in industrial applications due to its high hardness, thermal conductivity, chemical stability, and controlled particle size. It serves as a core material in fields ranging from diesel particulate filters (DPF) and abrasives to advanced ceramics, semiconductor wafers, and high-performance brake systems.
Key Industrial Applications
1. Diesel Particulate Filters (DPF)
Green/black SiC micropowder improves filtration efficiency, thermal shock resistance, and regeneration performance.
High-purity SiC ensures longer service life and compliance with stringent emission regulations.
2. Abrasives and Grinding Tools
Green SiC micropowder (Mohs hardness 9.2) enhances cutting efficiency and surface finish in grinding, cutting, and polishing operations.
Widely used for sand wheels, coated abrasives, and precision ceramic grinding.
3. Precision Polishing and Lapping
SiC micropowder ensures mirror-smooth surfaces in optical, semiconductor, and precision ceramic components.
Controls surface roughness ≤ Ra 0.2 μm and reduces sub-micron scratches.
4. Piezoelectric Crystal Processing
Green SiC serves as cutting and polishing material, reducing edge chipping by 40% and enhancing flatness.
Compatible with chemical cutting fluids due to its chemical stability.
5. Foam Ceramics and High-Temperature Filters
Improves mechanical strength, filtration precision, and high-temperature resistance.
Enables effective metal and gas filtration in casting and semiconductor manufacturing.
6. Carbon Ceramic Brake Discs
Reinforces brake discs, improving friction stability, thermal conductivity, and wear resistance.
Supports lightweight and long-life braking systems.
7. Ceramic Membranes
SiC membranes outperform traditional filtration materials in chemical resistance, thermal stability, and pore control.
Anti-fouling properties enhance lifespan and operational efficiency.
8. Kiln Furniture / Ceramic Shelf Plates
SiC micropowder boosts thermal conductivity >120 W/m·K and reduces localized overheating.
Low thermal expansion ensures dimensional stability during high-temperature firing.
Product Comparison Across Applications
| Application | SiC Type | Purity | Particle Size | Key Benefit | Notes |
|---|---|---|---|---|---|
| DPF | Black/Green | 88–90% | 1–3 μm | Filtration efficiency, thermal shock resistance | Automotive standard |
| Abrasives | Green | 88–90% | 1–5 μm | High hardness, wear resistance | Sand wheels, coated abrasives |
| Precision Polishing | Green | 4N–5N | 0.1–1 μm | Smooth surfaces, flatness ≤ λ/10 | Optical, semiconductor wafers |
| Piezoelectric Crystals | Green | 4N | 0.3–0.8 μm | Edge chipping reduction, precision cutting | Cutting fluids compatible |
| Foam Ceramics | Green | 4N | 1–5 μm | Mechanical strength, high-temp filtration | Metal casting & semiconductors |
| Brake Discs | Black/Green | 88–90% | 1–2 μm | Friction stability, heat dissipation | Carbon ceramic brakes |
| Ceramic Membranes | Green | ≥99.9% | 0.1–1 μm | Chemical & thermal resistance | Industrial filtration |
| Kiln Furniture | Black/Green | 88–90% | 1–3 μm | Thermal conductivity, low thermal expansion | Shelf plates & industrial kilns |
Tip: Choosing the right SiC type and purity ensures maximum performance and cost-efficiency across industrial applications.
FAQ
1. Can black and green SiC micropowder be used interchangeably?
Green SiC is harder and chemically more stable, suitable for precision and high-temperature applications. Black SiC is cost-effective for general industrial uses.
2. What are the typical SiC purity levels for industrial use?
88–90% for general industrial applications (abrasives, DPF, brake discs)
4N–5N (≥99.99%) for precision and semiconductor applications
3. How does SiC improve thermal management in industrial processes?
High thermal conductivity ensures heat is evenly distributed, reducing hot spots and improving material performance in DPF, kiln furniture, and brake discs.
4. Is SiC micropowder compatible with chemical processing environments?
Yes, high-purity green SiC is chemically inert and stable in acids, bases, and cutting fluids.
5. How does particle size affect performance?
Finer particles improve surface finish and precision (polishing, wafer processing).
Coarser particles enhance abrasion, cutting, and mechanical reinforcement.
6. Can SiC micropowder reduce maintenance or replacement costs?
Yes, due to its high wear resistance, thermal stability, and chemical inertness, SiC extends component lifespan and reduces downtime.
📞 Contact Us
Looking for high-quality black or green SiC micropowder (88–90% purity) for industrial applications?
ZhenAn New Materials provides:
Bulk supply of SiC micropowder with controlled particle size and purity
Technical guidance for DPF, abrasives, polishing, brake discs, membranes, and kiln furniture
Long-life, high-temperature, and high-performance industrial solutions
📧 Email: market@zanewmetal.com
📱 WhatsApp: +86 155 1882 4805
Contact us today for quotation and technical support within 24 hours.
Why Choose ZhenAn for Your Silicon Carbide Products
High Purity & Consistency – ZhenAn provides SiC with precise purity levels (88%, 90%, 98%), ensuring reliable performance for demanding applications.
Wide Product Range – From micropowders to lumps, black and green silicon carbide, we supply grades for metallurgy, abrasives, ceramics, and DPF filters.
Competitive Factory Prices – Direct factory supply guarantees cost-effective solutions without compromising quality.
Strict Quality Control – Every batch undergoes rigorous inspection to meet international standards.
Fast & Flexible Delivery – Large inventory and efficient logistics support timely delivery worldwide.