Boron Nitride (BN) Crucible

Cersol’s Boron Nitride Crucible (BN Crucible) series serves as a reliable solution for high-temperature industrial applications. Engineered with high-purity boron nitride and precise manufacturing techniques, our BN Crucibles deliver consistent performance under demanding conditions. Below are the key characteristics and typical applications:

Key Performance Characteristics

1. Demonstrated Reliability:
Cersol BN Crucibles have been tested and utilized by global institutions, including Japanese AlN/Si₃N₄ substrate manufacturers, MIT (Massachusetts Institute of Technology), and the University of Technology Sydney. Their validation underscores our products’ stable performance in critical applications, from advanced material research to industrial-scale production.

2. High Purity:

• C-BN-H features 99.7% boron nitride (BN-99.7%), ensuring high chemical stability and corrosion resistance for high-purity metal evaporation and molten material processing.
• C-BN-99 offers 99% purity, balancing performance and cost-effectiveness for diverse industrial needs.

3. Temperature Resistance:

• In inert gas environments, BN Crucibles withstand temperatures up to 2100°C (C-BN-H / C-BN-99), exceeding many conventional ceramics and ensuring stability in high-heat operations.
• Under vacuum or air, long-term operational temperatures reach 1900°C and 900°C respectively, adapting to multiple industrial scenarios.

4. Effective Thermal Conductivity:

• C-BN-A3 achieve a thermal conductivity of 85 W/m·K, enhancing heat transfer efficiency for rapid heating/cooling processes, reducing energy consumption, and extending service life.

5. Mechanical Strength:

• With a maximum compressive strength of 400 MPa (C-BN-S2) and bending strength of 220 MPa, our crucibles resist deformation and mechanical stress in high-temperature, high-pressure environments.

Typical Applications

BN Crucibles are widely used in:

• Metal Evaporation & Deposition: Suitable for high-purity metal evaporation in semiconductor and photovoltaic industries, minimizing contamination risks.
• Molten Metal/Glass Handling: Resistant to corrosion from molten aluminum, copper, precious metals, and glass, supporting continuous production.
• Powder Metallurgy & Casting: High-temperature molds and support components (e.g., C-BN-A1, C-BN-A2, C-BN-S1) enhance precision and efficiency in alloy forming.
• AlN/Si₃N₄ Substrate Sintering: Essential for high-purity sintering of AlN (aluminum nitride) and Si₃N₄ (silicon nitride) ceramic substrates, widely used in electronics and optoelectronics. Our crucibles prevent contamination and withstand high sintering temperatures.
• High-Temperature Furnace Components: Insulating sleeves and heater protection (e.g., C-BN-Z) operate reliably in environments exceeding 1800°C.

Why Choose Cersol BN Crucibles?

• High Purity: 99.7% BN composition provides inertness and chemical stability.
• Temperature Resilience: 2100°C capability meets rigorous industrial requirements.
• Effective Heat Transfer: 85 W/m·K thermal conductivity optimizes process efficiency.
• Longevity: Robust design reduces downtime and replacement costs.

Cersol Boron Nitride Crucibles support high-temperature industries with advanced materials, delivering reliable solutions for metal processing, material synthesis, and manufacturing.

Technical Specifications

Frequently Asked Questions (FAQ)

Q: What is a BN crucible and why is it used?

A: A BN crucible refers to a crucible made of Boron Nitride. Its main characteristics are:
• High temperature resistance: In an inert atmosphere (such as argon and nitrogen), its long-term use temperature can reach more than 2000°C.
• Chemical inertness: It can withstand a variety of highly corrosive metals and compounds, making it suitable for metallurgy and special ceramic melting.
• Thermal shock stability: It exhibits strong thermal shock resistance to rapid temperature changes.

Q: What is the maximum temperature BN crucibles can withstand in different atmospheres?

A:
• In an inert atmosphere (such as argon and nitrogen): The operational temperature is around 2100°C.
• In air or oxygen-containing environment: The temperature is generally recommended to be controlled within 900°C to avoid surface oxidation or structural damage.

Q: Are BN crucibles easy to machine and maintain?

A:
• Processability: BN materials are brittle, but their low friction coefficient and wear resistance make them suitable for machining and shaping by laser cutting or precision grinding with tight tolerances.
• Maintenance: The common cleaning method is non-mechanical cleaning with inert cleaning agents. It is recommended to check for microcracks or wear before and after use to prevent problems during high-temperature operation.

Q: How do I choose the right BN crucible for my application and what should I watch out for?

A: The choice depends on the temperature requirements, chemical media aggressiveness, and dimensional requirements of your specific application (such as melting metals, glass, or ceramic processes).
• Check the technical data provided by the manufacturer (including thermal conductivity, density, porosity, etc.).
• If high temperature and high pressure conditions are used for an extended period, strength and thermal shock resistance should be considered.
• Precautions for use: Check regularly for cracks or wear; when the temperature rises rapidly, it is recommended to preheat the machine to reduce thermal stress.

Q: What about the cost and market availability of BN crucibles?

A: Due to the manufacturing process and purity requirements, the price of BN crucibles is higher than that of traditional ceramic crucibles. However, due to its high temperature resistance and corrosion resistance, it plays a critical role in specific fields (such as aerospace, nuclear energy, and advanced semiconductors). At present, the major suppliers of boron nitride are concentrated in China, the United States, Germany, and Japan. Chinese-manufactured boron nitride ceramics meet advanced international standards while maintaining competitive pricing. Please contact Cersol for high-quality boron nitride crucibles.