Boron Nitride

Overview of Boron Nitride Ceramic Products

Boron nitride (BN) ceramics represent a class of advanced engineering materials known for their exceptional thermal properties, chemical inertness, and electrical insulation. These ceramics are engineered to deliver superior performance in high-temperature and corrosive environments. Utilizing high-purity boron nitride as the base material, these products offer unparalleled thermal conductivity, low coefficient of thermal expansion, and excellent wear resistance. Whether used in aerospace components or cutting-edge electronic devices, boron nitride ceramics set new standards for durability and reliability.

Features of Boron Nitride Ceramic Products

1. High Thermal Conductivity: With thermal conductivity ranging from 100 to 300 W/m·K, BN efficiently dissipates heat, making it ideal for high-temperature applications.
2. Low Coefficient of Thermal Expansion: BN exhibits a very low CTE, ensuring dimensional stability even under rapid temperature changes.
3. Chemical Inertness: Highly resistant to corrosion from acids, alkalis, and organic solvents, ensuring long-lasting performance in harsh environments.
4. Electrical Insulation: Excellent dielectric strength and resistivity make BN suitable for use in electrical insulation applications.
5. Self-Lubricating: BN has a low coefficient of friction, reducing the need for additional lubricants in moving parts.
6. Non-Toxic and Biocompatible: BN is non-toxic and biocompatible, making it suitable for medical and food processing applications.
7. High Purity: Available in high-purity forms, which enhance its performance in sensitive applications.
8. Hexagonal Structure (h-BN): The hexagonal form of BN, often referred to as "white graphite," provides excellent lubrication properties at high temperatures.

Specifications of Boron Nitride Ceramic Products

Property	Specification
Material Composition	High-purity boron nitride (BN), available in hexagonal (h-BN) or cubic (c-BN) forms
Density	2.27 g/cm³ (h-BN); 3.48 g/cm³ (c-BN)
Hardness (Mohs Scale)	~2 (h-BN); ~9.5 (c-BN)
Hardness (Vickers)	~1000 HV (h-BN); ~5000 HV (c-BN)
Fracture Toughness	~2 MPa·m^(1/2) (h-BN); ~12 MPa·m^(1/2) (c-BN)
Compressive Strength	> 300 MPa (h-BN); > 4000 MPa (c-BN)
Tensile Strength	> 100 MPa (h-BN); > 600 MPa (c-BN)
Flexural Strength	> 100 MPa (h-BN); > 600 MPa (c-BN)
Elastic Modulus	100 - 150 GPa (h-BN); 450 - 500 GPa (c-BN)
Thermal Conductivity	100 - 300 W/m·K (h-BN); 130 - 180 W/m·K (c-BN)
Coefficient of Thermal Expansion (CTE)	2.5 - 4 × 10⁻⁶/°C (h-BN); 1.3 × 10⁻⁶/°C (c-BN)
Maximum Service Temperature	Up to 900°C in air; up to 2000°C in inert atmospheres
Thermal Shock Resistance	ΔT > 1000°C (depending on thickness and shape)
Dielectric Strength	> 10 kV/mm
Volume Resistivity	> 10¹⁵ Ω·cm at 25°C
Surface Resistivity	> 10¹⁴ Ω/sq at 25°C
Dielectric Constant (εr)	~4.5 at 1 MHz
Loss Tangent (tan δ)	< 0.0001 at 1 MHz
Chemical Resistance	Excellent resistance to acids, alkalis, and organic solvents
Porosity	< 0.5%
Water Absorption	< 0.1%
Color Options	Natural white (h-BN); customizable colors through pigmentation
Finish Options	Polished, honed, matte, textured
Environmental Impact	Recyclable, low environmental footprint

Applications of Boron Nitride Ceramic Products

• Aerospace and Automotive Industries: Used in engine components, bearings, and seals where high temperatures and corrosive environments are common.
• Mechanical Engineering: Employed in cutting tools, dies, and wear-resistant parts due to its superior hardness and wear resistance.
• Chemical Processing: Ideal for pump components, valves, and other parts exposed to aggressive chemicals.
• Electronics: Suitable for substrates, semiconductor devices, and power electronics owing to its excellent electrical properties.
• Energy Sector: Found in furnace linings, crucibles, and heat exchangers, benefiting from the material's thermal stability and resistance to thermal shock.
• Medical Devices: Used in surgical instruments and implants where biocompatibility and durability are critical.
• Food Processing: Utilized in cookware and baking molds, leveraging its non-stick and heat-resistant properties.

Company Introduction

Advanced Ceramics is committed to being the world's leading provider of ceramic material solutions. Since our inception in 2012, we have focused on the development, production and sales of high-performance ceramic products, providing our customers with innovative products and quality services. With a deep understanding of material science and advanced manufacturing technology, we have won wide recognition in a variety of fields, including electronics, machinery, construction, and medical care.

Our core competitiveness lies in continuous technological innovation and strict quality control. We have an R&D team of senior scientists and engineers who are constantly exploring the application potential of new materials to ensure that our products are always at the forefront of the industry. At the same time, we have established a perfect quality management system, from the selection of raw materials to the finished product factory, each link is strictly tested to ensure the high quality and consistency of our products.

Advanced Ceramics' product line covers a wide range of ceramic applications, including but not limited to: high-precision electronic ceramic components, wear-resistant mechanical parts, decorative building materials, and medical implants. We not only provide standard products, but also customize ceramic products with special specifications and functions according to customers' needs. In addition, we actively promote the concept of green environmental protection, all production processes comply with international environmental standards, and strive to minimize the impact on the environment.

For more information, please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By sea, by air, by express as soon as possible once payment receipt.

5 FAQs of Boron Nitride Ceramic Products

1. Q: What makes boron nitride ceramics so thermally conductive? A: Boron nitride's unique crystal structure allows for efficient phonon transport, leading to high thermal conductivity while maintaining low thermal expansion.
2. Q: Can boron nitride ceramics be machined after sintering? A: While boron nitride is relatively hard, it can be machined using diamond tools. However, machining should be done by professionals familiar with ceramic machining techniques to avoid damage.
3. Q: How does boron nitride compare to traditional ceramics in terms of thermal shock resistance? A: Boron nitride has superior thermal shock resistance compared to many traditional ceramics, thanks to its low coefficient of thermal expansion and excellent thermal conductivity.
4. Q: Are boron nitride ceramics suitable for high-temperature applications? A: Yes, boron nitride can withstand continuous service temperatures up to 900°C in air and much higher in inert atmospheres, making it ideal for high-temperature environments.
5. Q: What maintenance do boron nitride ceramic surfaces require? A: Boron nitride ceramics are easy to maintain; regular cleaning with mild soap and water is usually sufficient. For tougher stains, non-abrasive cleaners can be used without damaging the surface.