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Boron carbide ceramic, also known as B4C, is one of the hardest technical ceramic materials. It has a low density and high hardness, as well as good wear resistance and chemical stability.

The chain reaction in a nuclear reactor must be regulated by controlling the number of neutrons. Boron carbide is an ideal material for this critical task.

Key Property: Boron-10 has an extremely strong ability to absorb thermal neutrons, with an absorption cross-section as high as 3835 barns. This means it acts like an efficient "neutron catcher", making it an ideal material for controlling nuclear reactions and shielding against radiation.

Multi-channel Tubular Membranes: The most common form. Membrane elements have multiple parallel channels (e.g., 19-channel, 37-channel). High mechanical strength, resistant to backwashing. Suitable for various industrial wastewaters and high-solids liquids.

In sensitive industries where impurity introduction must be avoided, the chemical inertness and extremely low self-wear rate of boron carbide grinding balls are key advantages.

This is the most widespread application area for boron carbide thin films. Utilizing its extremely high hardness and low friction coefficient, B₄C coatings are used to protect precision components.

Pressureless sintering involves heating a pre‑formed green body to high temperature (typically 2150–2250 °C) under atmospheric pressure (or in vacuum / protective atmosphere). Densification is driven by the reduction in surface free energy, with particle bonding and pore elimination occurring through diffusion,

This is the most defining characteristic of boron carbide. On one hand, its strong covalent bonds (B-B and B-C) give it ultra-high hardness,

This is the most defining characteristic of boron carbide. On one hand, its strong covalent bonds (B-B and B-C) give it ultra-high hardness,

The core value of nuclear-grade boron carbide lies in its boron content, particularly the isotope boron-10 (10B). In natural boron, the atomic abundance of 10B is approximately 19.8%, yet its thermal neutron capture cross-section is about 4,000 barns.

Compared to other sintering methods (such as hot pressing or reaction bonding), pressureless sintering offers several outstanding advantages:

The most established use of green silicon carbide powder is in the processing and finishing of ceramic materials themselves. Due to its extreme hardness (approaching that of diamond) and its sharp, angular grain structure, it is an ideal abrasive .