High-Purity Boron Carbide Targets for PVD - Leading China Suppliers & Factory for Superhard Ceramic Materials

Boron carbide ceramic targets are premium sputtering targets crafted from high-purity boron carbide powder, meticulously sintered through advanced techniques. Specifically designed for physical vapor deposition (PVD) processes such as magnetron sputtering, these targets are produced by leading suppliers and manufacturers in China. Recognized as superhard ceramic materials, boron carbide targets exhibit exceptional hardness, outstanding wear resistance, and impressive neutron absorption properties. These characteristics make them indispensable in critical applications within the nuclear industry, ultra-hard protective coatings, and precision tooling. Trust our China-based factory for high-quality boron carbide ceramic targets that meet your industrial needs

Product Detail

Film properties

Boron carbide thin films can achieve a hardness of 30-40 GPa (approximately 3000-4000 HV), making it one of the hardest known materials, significantly enhancing the wear resistance and scratch resistance of device surfaces. It exhibits extremely high corrosion resistance against acids and bases, particularly maintaining good chemical inertness at high temperatures. The material has a low density (approximately 2.52 g/cm³), but an extremely high Young's modulus, making it suitable for lightweight protective applications where weight sensitivity is important.

High-efficiency sputtering performance

High-density (≥98% theoretical density) targets are obtained through hot pressing (HP) or hot isostatic pressing (HIP), which reduce particle splatter and cracking during the sputtering process. Although the conductivity is relatively poor (requiring RF radio frequency sputtering), the process is mature and can yield uniform thin films with good adhesion.

Special functional characteristics

The element boron has a high thermal neutron absorption cross-section (600 barns), making it an ideal choice for control rods in nuclear reactors and shielding materials. With a melting point of up to 2450°C, it maintains structural stability and performance in high-temperature environments. Its low coefficient of thermal expansion allows it to withstand drastic temperature changes without cracking.

Frequently Asked Questions

What is the hardness of boron carbide thin films?

Boron carbide thin films can achieve an exceptional hardness of 30-40 GPa (approximately 3000-4000 HV), making it one of the hardest known materials to enhance wear and scratch resistance.

Are boron carbide thin films resistant to corrosion?

Yes, they exhibit extremely high corrosion resistance against both acids and bases, and they maintain excellent chemical inertness even at high temperatures.

How is the sputtering performance of boron carbide targets optimized?

By using high-density (≥98% theoretical density) targets obtained through hot pressing (HP) or hot isostatic pressing (HIP), which significantly reduce particle splatter and cracking during sputtering.

What type of sputtering technology is required for boron carbide targets?

Due to its relatively poor conductivity, RF (radio frequency) sputtering is required. This mature process yields uniform thin films with excellent adhesion properties.

Why is boron carbide suitable for nuclear shielding?

The element boron possesses a high thermal neutron absorption cross-section (600 barns), which makes it an ideal material for nuclear reactor control rods and shielding applications.

What is the melting point and thermal stability of boron carbide?

Boron carbide has a melting point of up to 2450°C. Its low coefficient of thermal expansion ensures structural stability and prevents cracking during drastic temperature changes.