Boron Carbide Targets for PVD - High-Purity Sputtering Solutions from China Suppliers and Factory

Boron carbide ceramic targets are high-purity sputtering targets manufactured by leading China suppliers. These targets are crafted from advanced boron carbide powder that has been sintered through state-of-the-art techniques, specifically designed for efficient physical vapor deposition (PVD) processes, including magnetron sputtering. As a hallmark of superhard ceramic materials, boron carbide targets exhibit exceptional hardness, remarkable wear resistance, and significant neutron absorption capabilities. These properties make them essential in various applications, particularly in the nuclear industry, ultra-hard protective coatings, and precision tooling. Choose our factory for reliable and high-quality boron carbide ceramic targets that meet your demanding requirements

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 (FAQ)

What is the hardness of boron carbide thin films?

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

How does boron carbide perform under high temperatures?

It maintains structural stability and performance in high-temperature environments with a melting point of up to 2450°C, and its low coefficient of thermal expansion allows it to withstand drastic temperature changes without cracking.

Why is boron carbide used in nuclear reactors?

The element boron has a high thermal neutron absorption cross-section (600 barns), making it an ideal choice for control rods and shielding materials in nuclear reactors.

What is the benefit of using high-density targets for sputtering?

High-density (≥98% theoretical density) targets obtained through hot pressing (HP) or hot isostatic pressing (HIP) help reduce particle splatter and cracking during the sputtering process.

What type of sputtering process is required for boron carbide?

Because its conductivity is relatively poor, RF (radio frequency) sputtering is required. This mature process yields uniform thin films with good adhesion.

Is boron carbide suitable for weight-sensitive applications?

Yes, it has a low density of approximately 2.52 g/cm³ combined with an extremely high Young's modulus, making it highly suitable for lightweight protective applications.