Boron carbide

5D-Boron Carbide Product Advantages

1. Annual production capacity of 2,000 tons, ensuring sufficient supply across a full range of grits, micropowders, and ultrafine powders.
2. Boron + carbon total content ≥98%, with low impurities, high purity, and narrow particle‑size distribution.
3. Technology export cases, including being the technology supplier for the Bandırma Boron Carbide Plant project in Turkey.
4. Supports custom specifications, including enriched ¹⁰B boron carbide and micron‑level powders.

Boron Carbide Application Areas

1. Sapphire wafers (LED): Double‑side grinding and back‑side reduction polishing of LED epitaxial wafers.
2. Nuclear industry: Shielding panels and neutron‑absorption pellets for nuclear reactors.
3. Refractories: Antioxidant for low‑carbon carbon bricks and castables.
4. Advanced Ceramics: Nozzles, mechanical seals, ceramic grinding media, bullet‑proof vests, armor.
5. High‑grade wear‑resistant welding strips.
6. Jewelry Polishing: Precision grinding and polishing in the jewelry industry.
7. Abrasive Processing: Grinding, drilling, and polishing of hard alloys and gemstones.

What are boron carbide compounds?

Boron carbide (B₄C) is a boron‑carbon compound. Enriched ¹⁰B absorbs neutrons via an (n,α) reaction, producing helium and lithium and expanding in volume by ~20%—a key limitation known as irradiation swelling.

Its hexagonal‑rhombohedral crystal (c₀ = 1.212 nm, a₀ = 0.56 nm) holds twelve boron atoms at the corners and can accommodate atoms ≤0.18 nm, retaining lithium or hydrogen. It remains stable under irradiation when boron burnup is <8%.

Properties: density 2.51 g/cm³, melting point ~2450°C, thermal conductivity ~24 W/(m·K) at 200°C, linear expansion 4.5×10⁻⁶ K⁻¹ (20–800°C). Cost‑effective for control applications, it is made by vapor‑deposition or electro‑thermal methods. Available as powder, blocks, or dispersed in matrices for reactor use, its hardness and strength also suit abrasives and corrosion‑resistant parts.