High Purity Silicon Carbide (SiC) Powder - ZhenAn International
Manufacturers in the semiconductor, technical ceramics, and precision polishing industries often struggle with impurities that compromise thermal conductivity and mechanical strength. Standard metallurgical grades simply cannot meet the rigorous demands of high-tech applications.
ZhenAn's High Purity Silicon Carbide (SiC) Powder is engineered to bridge this gap. With SiC content reaching up to 99% and above, our powder provides the chemical stability and extreme hardness required for the most challenging industrial environments.
Chemical Composition and Technical Specifications
ZhenAn ensures that every batch of high purity SiC powder undergoes strict laboratory testing to maintain consistency in crystal structure and purity levels.
| Element / Parameter | Green SiC Powder (High Purity) | Black SiC Powder (Industrial High Grade) |
| SiC Content | ≥ 99.5% | ≥ 98.5% |
| Free Carbon (F.C.) | ≤ 0.10% | ≤ 0.20% |
| Fe2O3 | ≤ 0.05% | ≤ 0.15% |
| Magnetic Content | ≤ 0.002% | ≤ 0.005% |
| Crystal Structure | Hexagonal (Alpha-SiC) | Hexagonal (Alpha-SiC) |
Key Industrial Applications of SiC Powder
1. Technical Ceramics & Refractories
High purity SiC is the primary material for Reaction Bonded Silicon Carbide (RBSiC) and Sintered Silicon Carbide (SSiC) components used in kilns, pumps, and valves.
2. Semiconductor & Electronics
Used as a substrate material, in wafer processing, and for heat sinks due to its exceptional thermal conductivity and low thermal expansion.
3. Precision Abrasives & Polishing
The extreme hardness (9.5 on Mohs scale) makes it ideal for wire sawing wafers, lapping optical glass, and finishing hard metals.
4. Aerospace & Defense
Integrated into composite materials for armor plating and aerospace structural components that require high strength-to-weight ratios.
Advanced Production Process & Quality Control
At ZhenAn, we utilize the Acheson Process refined with secondary purification techniques.
Raw Material Selection: We use high-grade silica sand and petroleum coke.
High-Temperature Smelting: Crystalline SiC is formed at temperatures exceeding 2500°C.
Milling & Grading: Precision airflow milling ensures a narrow particle size distribution (PSD), which is critical for sintering consistency.
Acid Washing: Removes trace metallic impurities to achieve "High Purity" status.
Why Choose High Purity SiC Over Standard Grades?
| Feature | Standard SiC | ZhenAn High Purity SiC |
| Thermal Conductivity | Average | Superior (Ideal for Heat Dissipation) |
| Wear Resistance | Moderate | Maximum (Extended Component Life) |
| Chemical Inertness | Good | Excellent (Resistant to Strong Acids/Alkalis) |
| Application Focus | Steelmaking/Deoxidation | Semiconductors, Ceramics, Optics |
Available Particle Sizes (Micron & Mesh)
We offer a comprehensive range of sizes to meet international standards (FEPA, JIS, ANSI):
Coarse Grit: 12# – 220# (For heavy-duty abrasives and refractories)
Fine Powder: 240# – 1200# (For ceramic sintering and coatings)
Micro Powder: W63 – W0.5 (0.5 micron) (For precision lapping and semiconductor applications)
Custom PSD (Particle Size Distribution) curves available upon request.
Benefits for High-Tech Manufacturing
Exceptional Hardness: Second only to diamond and boron carbide.
Low Thermal Expansion: Ensures dimensional stability in fluctuating temperatures.
High Oxidation Resistance: Maintains integrity in air at temperatures up to 1600°C.
High Modulus of Elasticity: Essential for high-stiffness structural parts.
Why Source from ZhenAn International?
ZhenAn International is a professional supplier dedicated to high-performance metallurgical and abrasive materials.
Technical Expertise: We don't just sell powder; we provide technical solutions for your sintering or polishing challenges.
Global Footprint: Proven track record of exporting to the USA, Europe, Japan, and Southeast Asia.
Batch Consistency: Our automated grading systems ensure that "Batch A" performs exactly like "Batch B."
Direct Manufacturer Pricing: Competitive edge through optimized supply chain management.
Logistics, Packaging, and FAQ
Q: What is the minimum order quantity (MOQ)?
A: We support both sample orders for R&D (1kg+) and bulk industrial orders (20 tons+).
Q: How do you prevent contamination during shipping?
A: All high purity powders are packed in vacuum-sealed double-layer bags within reinforced drums or jumbo bags.
Q: Can you provide SEM (Scanning Electron Microscope) images?
A: Yes, we provide SEM reports and laser particle size analysis (MasterSizer) with every shipment.
Contact Our Expert Team
Partner with ZhenAn for your high purity silicon carbide needs. Our engineers are ready to assist with your material selection.
Company: ZhenAn International Co., Ltd.
Email: market@zanewmetal.com
WhatsApp: +8615518824805
Third-party inspection available
Hot Tags: high purity silicon carbide sic powder, China high purity silicon carbide sic powder manufacturers, suppliers, factory