Advantages and Uses of Boron Nitride Ceramic Sheets!

Learning about ceramic materials is inevitable if you are a materials scientist, engineer, or an enthusiast of modern technology. In this article, we discussed the advantages and uses of boron nitride ceramic sheets. Let’s dive in.

What is a Boron Nitride Ceramic Sheet?

The boron nitride (BN) ceramic sheet is a synthetic ceramic material formed into flat sheets. The BN sheets are also known as the boron nitride plate. The key elements of a boron nitride sheet are the inorganic boron nitrida ceramic compound.

The materials used in boron nitride ceramic sheet production are:

• hexgonal boron nitride powder(hBN)

• And additives such as silicon dioxide(SiO2), and silicon carbide( SiC).

The boron nitride has special thermal and chemical properties. Hence, the BN sheets also have high heat resistance of over 2000°C, high thermal conductivity, electrical insulation, chemical inertness, and machinability.

Sometimes, aluminum nitride and zirconium oxide are also used with boron nitride for specific applications. A combination of these materials create super-strong compound materials that can withstand harsh abrasions. The boron nitride sheets are robust and resistant to thermal shock.

Usually two types of boron nitride plates you will find in the market:

• Hot-pressed boron nitride(HPBN) sheets, which are known for their good machinability and strength

• Pyrolytic boron nitride (PBN) sheets are popular for their purity, anisotropic properties, and thermal conductivity.

Boron Nitride Ceramic Sheets At a Glance:

What Are The Advantages of Boron Nitride Ceramic Sheet?

Itu boron nitrida ceramic sheet has many advantages due to its exceptional properties. Major benefits of BN sheets relative to their properties are discussed here for you:

High Temperature Stability: Boron nitride sheets can withstand extreme heat of over 2000°C and can resist thermal shocks and abrupt temperature changes. The BN sheet can prevent deformation in extreme environments due to its low thermal expansion.

For this property, boron nitride ceramic sheets provide excellent structural integrity for cutting-edge technology such as aerospace, furnaces, and crucibles.

Kepadatan Rendah: Boron nitride sheet is a low-density and lightweight material. They have a density of around 2.1 g/cm³. They are suitable for components such as aircraft engines and automobile parts, where weight is a crucial consideration.

High Electrical Resistivity: The electrical resistivity of boron nitride ceramic sheets is between 10^13 and 10^16 ohm-centimeters at normal room temperature. This high resistivity has made them perfect for critical components in power electronics, where an electrical barrier is required.

High Breakdown Voltage:  The high breakdown voltage of BN sheets has enabled miniaturization and shrinking of electronic components. In consequence, you are getting compactly designed electronic devices such as smartphones and laptops.

Excellent Electrical Insulation:  The boron nitride sheets provide high electrical insulation and prevent leakage current in electronic devices. Insulation capability also made them sustainable in harsh environments.

Machinability: The machinability of a material allows the production of custom-sized components with tight tolerances. It also makes complex and costlier components manufacturing easier and cost-effective.

Better machinability of the materials allows manufacturing components with precision and tolerance of near 0.002 inches. Boron nitride sheet provides an excellent machinability compared to other materials.

Corrosion Resistance: Boron nitride ceramic sheets are resistant to corrosion. They can create a barrier against aggressive chemical reactions. Thus, it prevents material degradation and extends the components’ lifetime.

What Are The Uses of Boron Nitride Ceramic Sheets?

Boron nitride ceramic sheets have many applications in modern industries.

1. Electronic and Semiconductor: Boron nitride plates are popular in electronics for their excellent thermal conductivity, high electrical insulation, and a large band gap.  Some of the most common uses of BN sheets you will find in chips, LEDs, lasers, EV batteries, power electronics, substrates, UV sensors, etc.

2. Antariksa: Boron nitride sheets are used in high-temperature protection, propulsion systems, and radiation shielding in aerospace. They are also used in radar, antennas, structural components, and thermal management.

You will also find the usage of BN sheets in rocket nozzles and hypersonic vehicle parts.

3. Alat Pemotong: You must used to drill in your house. But do you know why the drill bit is so strong? This is due to the characteristics of the material used in the bit.

The boron nitride sheet offers superior hardness, longer life, thermal stability, wear resistance, and excellent surface finishing for the cutting tools.

4. Industrial Furnaces: Boron nitride ceramic sheets have applications in the furnaces as non-stick barriers, thermal management components, and protective equipment.

5. Metal and Glass Processing Industry: You get the uses of boron nitride plates in metal casting and glass processing. Different nozzles and crucible components are of metal industry are usually made from BN ceramic sheets.

6. Medical and Dental: Boron nitride is a non-toxic and non-reactive material for the human body. Hence, boron nitride ceramic sheets are used in the medical and dental fields. Common uses of boron nitride sheet in healthcare include:

• Drug delivery system,

• Antibiofilm coatings and antimicrobial coatings,

• Bioimaging and biosensing device,

• Boron-neutron capture therapy,

• Dental implants,

• Scaffolds and tissue engineering.

7. Future Possibilities: Boron nitride is one of the most promising advanced ceramic materials, which has unique characteristics and multifunctionality. Scientific research on boron nitride sheets in real industries will bring out more potential applications.

The usage of boron nitride ceramic sheets may increase with new processing methods, new material composites, and manufacturing processes. From aerospace to nanotechnology and automotive,  BN sheets could be a vital material for future advancement

Pertanyaan yang Sering Diajukan:

Apa itu Boron Nitrida?

Boron nitride(BN) is a ceramic compound of boron and nitrogen elements. The boron nitride compound is formed by the covalent bond between a boron and a nitrogen atom. It is also known as inorganic graphite. But it is a colorless insulator. Hexagonal boron nitride can be converted to the cubic form, like diamond, by heating at high temperatures and pressures.

Is Boron Nitride a Ceramic?

Boron nitride is a synthetic ceramic material used in advanced engineering.

Is Boron Nitride Expensive? 

Boron nitride is comparatively more expensive than its alternative. However, the cost of boron nitride may vary depending on its purity, structure, and material form.

Is boron nitride stronger than diamond?

The regular cubic boron nitride (c-BN) is less strong than diamond. But, specially engineered boron nitride, for example, wurtzite boron nitride (w-BN) and nanotwinned boron nitride, are stronger than diamond. These forms require a difficult manufacturing process and high technology.

Is Boron Nitride Bulletproof?

Yes, boron nitride is considered to be bulletproof. The hardest form of boron, like cubic boron nitride, is used in bulletproof armor technology. with a combination of other materials, such as Kevlar. As pure boron nitride can be brittle, the combination of materials such as Kevlar is used in the bulletproof technology.

Intinya:  Boron nitride ceramic sheets are a potential innovation in material science that has made many impossible realities possible. We expect this article help you learn about boron nitride plates. Stay connected for more about ceramics and products.