boron carbide size F1200
1. F1200 Particle Size Classification
The “F” designation (e.g., F1200) generally aligns with the FEPA (Federation of European Producers of Abrasives) grit size standard, where higher numbers indicate finer particles. While the exact micron range for F1200 is not explicitly detailed in the provided search results, it is listed among commercially available boron carbide powders (e.g., F100 to F1500) on platforms like Alibaba2. For context:
- Coarser grades like F100 (~150 μm) are used for heavy grinding.
- Finer grades like F1200 likely correspond to a particle size of ~3–5 μm (based on standard FEPA grit-to-micron conversion tables).
2. Impact of Fine Particle Sizes on Material Properties
Smaller boron carbide particles (e.g., submicron or nanometer scales) significantly enhance material performance:
- Densification: Powders with a mean particle size of 200 nm achieve 90.5% relative density when sintered at 1850°C, along with a hardness of ~17 GPa4.
- Mechanical Strength: Finer particles reduce diffusion activation energy during sintering, improving densification rates and final mechanical properties4.
- Composite Performance: In Al-Si-infiltrated boron carbide composites, smaller particle sizes (e.g., 3 μm vs. 180 μm) yield higher elastic modulus (270 GPa) and bending strength (405 MPa)15.
3. Applications of F1200 Boron Carbide
While not explicitly mentioned in the search results, F1200-grade boron carbide’s fine particle size suggests its use in:
- High-precision polishing (e.g., optics, semiconductors).
- Advanced ceramics requiring uniform microstructures.
- Ballistic armor or neutron-absorbing materials, where boron carbide’s hardness and radiation-shielding properties are critical1.
4. Purchasing Considerations
The Alibaba listing confirms that F1200 boron carbide powder is commercially available, with quality assurances such as SSL encryption and refund policies2. However, specific technical details (e.g., exact particle distribution) would require direct consultation with suppliers.
Summary
F1200 boron carbide represents a fine-grade powder (~3–5 μm) optimized for high-performance applications. Its particle size directly influences sintering behavior, mechanical strength, and composite performance, as demonstrated in studies on densification4 and metal-ceramic interfaces15. For precise specifications, consult supplier data sheets or technical literature.
