Silicon Carbide (CAS 409-21-2) Comprehensive Technical Guide
Table of Contents
1. Product Specifications and Comparison
| Parameter | Black SiC | Green SiC |
|---|---|---|
| Chemical Formula | CSi | |
| Molecular Weight | 40.0962 | |
| Density (g/cm³) | 3.20-3.25 | 3.20-3.25 |
| Hardness (kg/mm²) | 2840-3320 | 2840-3320 |
| Melting Point (°C) | 2700 | |
Note: Both variants exhibit identical thermal stability but differ in purity (green SiC >99.8%, black SiC >98.5%).
2. Key Applications
Advanced Refractories
Primary use in kiln furniture, blast furnace linings, and rocket nozzles due to thermal shock resistance up to 1600°C.
Abrasive Engineering
Manufacturing of grinding wheels (mesh 240-8000), cutting tools, and lapping compounds with 40% higher efficiency than alumina.
Semiconductor Substrates
4H-SiC and 6H-SiC crystals for high-power electronics (operating at 600V-10kV) with 10x higher thermal conductivity than silicon.
3. Industry Use Cases
Metallurgical Processing
Implemented in 85% of Chinese steel plants for deoxidizers, reducing slag formation by 30% in EAF operations.
Ceramic Matrix Composites
SiC-SiC components in turbine engines demonstrate 1500-hour lifespan at 1200°C vs. 500 hours for nickel alloys.
4. Client Success Stories
Leading Refractory Manufacturer
A European materials company achieved 18% energy savings in glass furnaces using our SiC-enhanced AZS refractories.
Global Semiconductor Foundry
6-inch SiC wafers enabled 25% reduction in EV power module costs while maintaining 99.7% production yield.
5. Technical Inquiry
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