Boron Nitride Powders

Frequently Asked Questions About Boron Nitride Powders

Boron Nitride (BN) powders offered by AdValue Technology are unique due to their exceptional combination of thermal, electrical, and mechanical properties, making them highly versatile for advanced industrial and scientific applications. One of the most notable characteristics of BN powders is their thermal stability—they remain stable at extremely high temperatures, withstanding heat up to ~1900-°C without significant degradation. This makes them ideal for use in high-temperature environments such as heat shielding for electronics, aerospace components, and thermo-shield coatings.

Another defining property of Boron Nitride powders is the combination of high thermal conductivity and excellent electrical insulation. Unlike many other ceramic materials, BN maintains its insulating capabilities even at elevated temperatures, which makes it suitable for applications in electronics, semiconductors, and polymer additives where reliable dielectric performance is critical.

In addition, BN powders exhibit low friction and lubricating properties, enabling them to function as high-temperature solid lubricants, anti-abrasive additives, and metal-forming mold release agents. Their lamellar crystal structure allows layers to slide easily over one another, providing lubrication under conditions where conventional oils or greases would fail. AdValue Technology’s Boron Nitride powders are also chemically inert and highly pure, with excellent crystallinity and consistent quality. These properties allow them to resist oxidation and chemical attack, which is essential for applications in fireproofing, anti-oxidation additives, and the synthesis of cubic boron nitride (CBN). By combining thermal stability, electrical insulation, lubricity, and chemical inertness, BN powders from AdValue Technology provide a versatile and reliable solution for demanding high-performance applications across multiple industries.

AdValue Technology offers a range of high-purity Boron Nitride (BN) powders, each designed to meet the specific requirements of various advanced applications. Our BN powders are sintered at temperatures up to 2000°C, ensuring excellent crystallinity, high purity, and consistent quality. The purity levels of our BN powders vary depending on the grade, allowing customers to select the most suitable material for their needs.

BN-AA Grade: This grade offers a purity of over 99%, with oxygen content around 0.5%, carbon content approximately 0.05%, and low levels of boron oxide and metallic impurities. It's suitable for applications requiring high purity but where ultra-low impurity levels are not critical.

BN-A Grade: With a purity exceeding 99%, this grade features reduced oxygen content (~0.2%) and minimal carbon (~0.03%) and boron oxide (~0.1%) levels. It's ideal for applications demanding higher purity and lower impurity levels than the BN-AA grade.

BN-AB Grade: Offering a purity greater than 99%, this grade has oxygen content around 0.4%, carbon content about 0.05%, and boron oxide levels under 0.25%. It's suitable for applications where slightly higher impurity levels are acceptable.

BN-B Grade: This grade maintains a purity of over 99%, with oxygen content approximately 0.3%, carbon content around 0.07%, and boron oxide levels under 0.3%. It's designed for applications where standard purity levels are sufficient.

BN-AT Grade: With a purity exceeding 99%, this grade features oxygen content around 0.6%, carbon content about 0.05%, and boron oxide levels under 0.3%. It's suitable for applications requiring standard purity levels.

BN-AS Grade: This grade offers a purity greater than 99%, with oxygen content approximately 0.3%, carbon content around 0.03%, and boron oxide levels under 0.3%. It's designed for applications where standard purity levels are acceptable.

BN-AY Grade: Maintaining a purity exceeding 99%, this grade has oxygen content around 0.4%, carbon content about 0.03%, and boron oxide levels under 0.3%. It's suitable for applications where standard purity levels are sufficient.

BN-SA Grade: This grade offers a purity greater than 99%, with oxygen content approximately 0.22%, carbon content around 0.01%, and boron oxide levels under 0.05%. It's ideal for applications requiring high purity and low impurity levels.

BN-SC Grade: With a purity exceeding 99%, this grade features oxygen content around 0.47%, carbon content about 0.01%, and boron oxide levels under 0.05%. It's suitable for applications demanding high purity and low impurity levels.

BN-AX-X Grade: This grade maintains a purity greater than 96%, with oxygen content approximately 2–3%, carbon content around 0.03%, and boron oxide levels under 4%. It's designed for applications where standard purity levels are acceptable.

BN-GT Grade: Offering a purity exceeding 98.5%, this grade features oxygen content around 0.012–0.1%, carbon content about 0.5–1%, and boron oxide levels under 0.18%. It's suitable for applications requiring high purity and low impurity levels.

BN-AZ Grade: This grade maintains a purity greater than 98.5%, with oxygen content approximately 1%, carbon content around 0.03%, and boron oxide levels under 0.5%. It's designed for applications where standard purity levels are acceptable.

Each grade is tailored to meet the specific needs of various applications, from high-temperature lubricants and mold release agents to components in electronics and aerospace. By offering a range of purity levels, AdValue Technology ensures that customers can select the most appropriate Boron Nitride powder for their particular requirements.

AdValue Technology’s Boron Nitride (BN) powders stand out among ceramic materials due to their exceptional combination of thermal stability and electrical insulation, making them ideal for demanding applications in electronics, aerospace, and high-temperature processing.

Thermal Stability: BN exhibits remarkable thermal stability across various crystalline forms. Hexagonal BN (h-BN), often referred to as "white graphite," maintains its integrity up to 1900°C in inert or vacuum environments, and up to 850°C in air. This high-temperature resistance is superior to many traditional ceramics, such as alumina (Al₂O₃), which typically withstands temperatures up to 1750°C. Additionally, BN's low thermal expansion coefficient and high thermal shock resistance ensure dimensional stability and durability under rapid temperature changes.

Electrical Insulation: Unlike graphite, BN is an excellent electrical insulator. It maintains high dielectric strength and volume resistivity even at elevated temperatures, making it suitable for high-voltage applications. For instance, BN's dielectric strength exceeds 40 kV/mm at room temperature. In contrast, materials like aluminum nitride (AlN) offer good electrical insulation but are more susceptible to oxidation and chemical attack under harsh conditions.

In summary, AdValue Technology’s BN powders provide a unique combination of high thermal conductivity, excellent electrical insulation, and superior thermal stability, distinguishing them from other ceramic materials and making them a preferred choice for advanced applications requiring both heat management and electrical isolation.

Yes, AdValue Technology accommodates research and testing needs by offering small quantity orders of Boron Nitride (BN) powders. This flexibility is particularly beneficial for laboratories, academic institutions, and R&D departments that require access to high-purity materials without committing to large-scale purchases.

While there is no minimum order quantity specified for BN powders, a $15.00 handling fee applies to orders totaling less than $100.00 before shipping. This policy ensures that even small-scale orders are processed efficiently and cost-effectively.

To place an order or request a quote, you can visit the Boron Nitride Powders product page and select the desired grade and quantity. If you require a custom formulation or specific particle size, AdValue Technology offers tailored solutions to meet your unique application needs.

For further assistance or to discuss your specific requirements, please contact AdValue Technology directly. Their team is available to provide guidance and ensure you receive the appropriate BN powder for your research or testing purposes.

AdValue Technology offers high-purity Boron Nitride (BN) powders that are particularly well-suited for applications such as metal forming mold release agents and wire-drawing lubricants. These applications benefit from BN's exceptional thermal stability, lubricating properties, and chemical inertness.

Metal Forming Mold Release Agents: For metal forming processes, BN powders provide an effective mold release solution. Their high thermal conductivity and low friction properties ensure smooth ejection of cast parts, reducing wear on molds and improving surface finishes. BN's chemical inertness also prevents reactions with molten metals, enhancing mold longevity and part quality.

Wire-Drawing Lubricants: In wire drawing, BN powders serve as effective lubricants by reducing friction between the wire and die, leading to smoother drawing processes and improved wire quality. The layered structure of hexagonal BN allows for easy sliding of layers, providing excellent lubrication even under high pressure and temperature conditions. This results in reduced tool wear and extended die life.

For both applications, AdValue Technology's BN powders are sintered at high temperatures up to 2000°C, ensuring excellent crystallinity, high purity, and consistent quality. These characteristics make them ideal for demanding applications requiring reliable performance and durability.

If you require assistance in selecting the appropriate BN powder grade for your specific application, AdValue Technology's team is available to provide guidance and support.

Yes. AdValue Technology’s Boron Nitride (BN) powders are ideally suited for use as high-temperature solid lubricants and anti-abrasive additives due to their unique combination of thermal stability, chemical inertness, and lubricating properties. Hexagonal Boron Nitride (h-BN), the most common form used for lubrication, has a layered crystal structure that allows the layers to slide easily over one another, reducing friction between surfaces even under extreme temperatures where conventional lubricants would fail. This makes BN powders an excellent choice for applications in metal processing, high-temperature molds, and mechanical systems exposed to elevated temperatures.

In addition to lubrication, BN powders are also effective as anti-abrasive additives. Their high hardness, excellent thermal stability, and chemical inertness allow them to protect surfaces and improve wear resistance in composite materials, coatings, and high-performance plastics. By incorporating BN powders into formulations, manufacturers can reduce friction, minimize material wear, and extend the service life of mechanical parts, cutting tools, and high-temperature components.

AdValue Technology’s BN powders are sintered at high temperatures up to 2000°C, ensuring consistent crystallinity, high purity, and reliable performance. These qualities make them particularly suitable for industrial, aerospace, and electronics applications where both high-temperature lubrication and abrasion resistance are critical. For customers with specific process requirements, AdValue Technology also offers guidance on selecting the optimal BN powder grade to achieve maximum performance and durability.

AdValue Technology’s Boron Nitride (BN) powders are highly effective in thermo-shield coatings for transistors and as additives in polymers due to their exceptional thermal stability, electrical insulation, and chemical inertness. In thermo-shield coatings, BN powders act as a protective barrier, helping to dissipate heat and prevent overheating of sensitive electronic components. Their high thermal conductivity ensures efficient heat transfer, while their excellent electrical insulation maintains the integrity of circuits and prevents short-circuiting. This makes BN powders ideal for enhancing the reliability and longevity of transistors, semiconductor devices, and other high-performance electronics.

In polymer additives, BN powders improve the thermal and mechanical performance of plastic and composite materials. When incorporated into polymers, BN provides enhanced heat resistance, dimensional stability, and reduced thermal expansion, making the material suitable for applications where high-temperature performance and electrical insulation are critical. Additionally, the lamellar structure of hexagonal BN can improve lubricity and wear resistance in polymer matrices, further extending the life and durability of molded or extruded parts. AdValue Technology’s BN powders are available in various particle sizes and high-purity grades, allowing engineers and manufacturers to tailor their formulations for specific thermal management and polymer enhancement requirements. By selecting the appropriate BN grade, customers can achieve optimized heat shielding, improved polymer performance, and consistent, reliable results across a wide range of industrial and electronic applications.

Yes. AdValue Technology’s high-purity Boron Nitride (BN) powders are well-suited as a raw material for synthesizing cubic boron nitride (CBN), one of the hardest and most thermally stable materials used in advanced cutting tools and industrial abrasives. The purity, crystallinity, and consistent quality of AdValue’s BN powders make them an ideal starting material for high-pressure, high-temperature (HPHT) processes that convert hexagonal or amorphous BN into CBN.

The synthesis of CBN requires BN powders with minimal impurities, as trace elements can affect the structural transformation and final hardness of the cubic phase. AdValue Technology’s BN powders are carefully processed to ensure low levels of oxygen, carbon, and metallic contaminants, which helps maximize yield and consistency in the production of CBN. Their uniform particle size distribution also facilitates controlled nucleation and growth during the conversion process, leading to high-quality cubic boron nitride crystals.

By using AdValue’s BN powders, manufacturers can achieve a reliable and reproducible feedstock for producing CBN with optimal hardness, thermal stability, and chemical resistance. Whether the application is in precision cutting tools, high-performance abrasives, or specialized industrial components, AdValue Technology provides the technical support and material quality necessary to ensure successful synthesis and superior end-product performance.