Do you have any questions? Email Us [email protected]

Boron Nitride (BN)

Boron Nitride (BN) encompasses diverse forms, including Hexagonal Boron Nitride (h-BN) and Pyrolytic Boron Nitride (PBN), making it an advanced synthetic ceramic material available in solid and powder forms, renowned for its exceptional properties. The microstructure of boron nitride makes it as an excellent electrical insulator with a higher oxidation temperature. Boasting high heat capacity, outstanding thermal conductivity, easy machinability, lubricity, low dielectric constant, and superior dielectric strength, Boron Nitride stands out as a versatile material.

In its solid form, Boron Nitride exhibits a hexagonal platy crystal structure, likened to "white graphene" or "inorganic graphite." These materials offer high thermal conductivity, good thermal shock resistance, and are easily machined into various shapes. Maintaining a non-toxic profile with colorless crystal or white powder options, Boron Nitride showcases remarkable oxidation resistance, excelling at temperatures up to 800 ℃.

More Info About Boron Nitride

Products | Structures | Specification | Material Grades | Applications | Video | FAQs | Safety Data Sheet


Boron Nitride Structures

The diverse structures of boron nitride ceramics, including hexagonal, cubic, and wurtzite forms, contribute to a range of applications across various industries. Each structure's distinct properties make boron nitride a versatile material with applications in lubrication, cosmetics, abrasives, and high-temperature coatings.

Hexagonal Boron Nitride (hBN):

Hexagonal boron nitride is the most stable phase of boron nitride at ordinary temperature and pressure. Its structure, similar to graphite, makes it the softest and most stable among BN polymorphs. This characteristic renders hBN ideal as a lubricant and an additive in cosmetic products. Additionally, hBN can be produced in graphene-like sheets, allowing the formation of boron nitride nanotubes. The versatility of hBN extends its applications into various industries, leveraging its stability and unique structural properties.

Read more: Hexagonal Boron Nitride vs. Graphene

Cubic Boron Nitride (CBN):

Cubic boron nitride stands out with its exceptional hardness, second only to diamond. Unlike diamond, CBN is insoluble in metals at high temperatures. This property makes CBN valuable as an abrasive material, finding applications in cutting tools and grinding wheels. Furthermore, its oxidation-resistant nature makes it a preferred choice for metal coatings in high-temperature environments. The combination of hardness and resistance to metal dissolution positions CBN as a key material in demanding industrial applications.

Read more: Hexagonal Boron Nitride VS. Cubic Boron Nitride

Wurtzite Boron Nitride (WBN):

The rare wurtzite boron nitride modification shares similarities with lonsdaleite and may even surpass CBN in hardness. While less commonly encountered, the unique properties of WBN make it a subject of interest in materials science. Its potential for extreme hardness opens avenues for applications where high durability and resistance are paramount.

Read more: Wurtzite Boron Nitride - A Simple Guide

Boron Nitride Specification

ACM's production formulations are developed to address the varied application problems in which ceramic components are commonly used. Many industrial applications push the envelope on specific requirements leading to the development of new formulations to successfully address them.

CAS#: 10043-11-5
Powder, F.W. 24.82
Item No. Description Purity Lot Size
NI05-98 Boron Nitride Powder
Particle Size: 3 µm, 200 mesh or 325mesh
BN > 98 %,
B2O3 < 0.6%,
Ca < 0.015%,
Si < 0.12%
100 kg
NI05-99 Boron Nitride Powder
Particle Size: 3 µm, 200 mesh or 325mesh
BN > 99 %,
B2O3 < 0.4%,
Ca < 0.01%,
Si < 0.10%
100 kg

Different Grades of Boron Nitride

Grade BN99
(Grade AX05)
(Grade A)
(Grade HP)
Composition hBN > 99.5% hBN > 98% hBN > 90%
Calcium Borate
hBN 40%, SiO2 60% (M)
hBN 60%, SiO2 40% (M26)
hBN > 45%
ZrO2 < 45%
Borosilicate < 10%
Color white white white white white gray
1.9 2.1 2 2.1-2.3 2.5-2.6 2.9
Features • Excellent corrosion resistance
• High thermal conductivity
• Thermal shock resistance
• Excellent moisture resistance
• Low thermal expansion
• Spallation resistance
• Thermal shock resistance
• High thermal conductivity
• Moisture resistance
• High thermal conductivity
• High-temperature resistance
• Easy machining
• Good wear resistance
• Chemical stability
• High thermal shock stability
Shape Rod
Custom part
Custom part
Custom part Custom part Custom part Nozzle
Custom part
Size Customized Up to 410mm x 495mm x 245mm Up to 410mm x 495mm x 245mm Customized Customized Customized

*For more information, please contact us.

Boron Nitride Applications

Boron nitride, known for its high thermal conductivity, low coefficient of friction, high dielectric constant, and chemical inertness, finds diverse applications across various industries:

Read more: Main Applications of Boron Nitride Ceramics

ACM Ceramic Product Video

Your Boron Nitride Ceramics Supplier

When it comes to high-quality boron nitride ceramic products, look no further than Advanced Ceramic Materials (ACM). As a leading supplier in the industry, ACM takes pride in offering a diverse range of boron nitride ceramics tailored for various applications.

Why Choose ACM?

Product Range

Explore our comprehensive range of boron nitride ceramic products designed to cater to a variety of industries and applications, including:

Get in Touch

Have questions about boron nitride or other ceramic materials not listed on our website? ACM's dedicated team is here to assist you. Feel free to contact us for inquiries, consultations, or any specific requirements you may have.

At ACM, we go beyond being just a supplier; we are your partner in achieving excellence through advanced ceramic solutions.

Read more: Boron Nitride Overview: Properties, Production, and Uses

What Are the Properties of BN Ceramic?
- Heat and chemical resistance: The compound has a melting point of 2,973°c and a thermal enlargement coefficient significantly above that of the diamond. Its hexagonal shape resists decomposition even if exposed to a 1000°c in ambient air. Boron nitride doesn’t dissolve in not unusual acids. - Thermal conductivity: At 1700 to 2000 w/mk, boron nitride has a thermal conductivity this is comparable with that of graphene, a similarly hexagon-latticed compound however made up of carbon atoms. - Lubricating property: Boron nitride has the capacity to reinforce the coefficient of friction of lubricating oil, whilst decreasing the capability for put-on. - Density: Depending on its form, its density ranges from 2. 1 to 3.5 g/cm3.
How Should I Determine the Suitable Particle Size or Distribution for My Application?
Ensure the largest particle size doesn't exceed your intended thickness or cross section. It's common for formulators to blend multiple size distributions to enhance packing and resin matrix percolation. Varied sizes offer benefits such as improved packing efficiency, enhanced thermal conductivity, and mechanical reinforcement. Consider consulting experts to tailor the particle size distribution to meet your specific application requirements.
How To Produce Boron Nitride Powder?
- Solid-State Synthesis - Precipitation & Coprecipitation - Spray Pyrolysis - Sol-Gel Method - Hydro-Thermal Further reading: 5 Boron Nitride Powder Production Methods
What Is Pyrolytic Boron Nitride?
Pyrolytic boron nitride is abbreviated as Pyrolytic BN or PBN, and also known as Chemical vapour-deposited Boron Nitride, Chemical Vapour-deposition of Boron Nitride or CVD-BN. As the name suggests, this is a kind of boron nitride prepared by high temperature pyrolysis reaction by chemical vapor deposition.
What Are the Main Uses of PBN Ceramic?
(1) Compound semiconductor single crystal growth container (2) Crucibles for molecular beam epitaxy (3) Crucibles for OLED (4) PBN ring and PBN sheet (5) PBN thin-film coating
Why Do BN Powders Exhibit Softness and Lubricity?
Boron nitride powders exhibit their soft and lubricious characteristics due to their lamellar structure, similar to graphite. Each powder particle consists of platelets with many layers, where each layer is a flat plane of covalently bonded boron and nitrogen atoms arranged hexagonally. Although the bonds within each layer are strong, the weak Van der Waals forces holding the layers together result in a soft and lubricious effect when the platelets are rubbed or sheared, causing the layers to cleave apart. Furthermore, the surfaces of high-purity Saint-Gobain BN crystals are free of carbon and other impurities. This absence of impurities ensures a smooth application without any "drag" or sticky feeling when incorporated into cosmetic formulations.
What Is the Impact of Varying Grades on The Properties of A Cosmetic Formulation?
The impact of different grades on cosmetic formulation properties primarily hinges on particle size and crystal morphology. Here's a breakdown: Particle Size and Appearance: Grades range from 2 to 30 microns in average diameter, influencing the cosmetic's appearance. Smaller particles create a matte white appearance, while larger ones result in a more translucent or shiny look. The shift in appearance is a direct outcome of varying platelet diameters. Crystal Morphology and Transparency: Single platelets of high-purity hexagonal BN exhibit transparency when viewed through the platelet face. Larger platelets, especially, can sparkle as light reflects off the face. However, most fine mesh BN powders form agglomerates that, when not dispersed, appear white and opaque. Regulatory Compliance: It's crucial to note that all grades maintain high purity and comply with global regulations for heavy metals. This ensures that the cosmetic formulation meets stringent quality and safety standards.
How to Choose Ceramic Materials?
Typical requirements for the properties of the ceramic materials depending on the specific application
Boron Nitride Ceramics Safety Data Sheet
Product name : Boron nitride Brand : ACM CAS-No. : 10043-11-5
PBN Product Manual
HBN Product Manual
  • Your Name (required)
  • Your Email (required)
  • Company Name (required)
  • Country (required)
  • Phone (Optional)
  • Ceramics (Optional)
  • Notes (Optional)
  • File Upload (Optional)