Overview of Boron Nitride Ceramic

Boron Nitride (BN) ceramic is a unique material renowned for its exceptional properties, making it highly valuable in various industrial applications. It exists in multiple forms, primarily hexagonal boron nitride (h-BN), cubic boron nitride (c-BN), and wurtzite boron nitride (w-BN). Hexagonal BN, the most common form, is often compared to graphite due to its lubricious and thermally conductive yet electrically insulating nature. Boron Nitride ceramics are synthesized under high temperatures and pressures, offering a rare combination of properties not found in many other materials.

Features of Boron Nitride Ceramic

Thermal Conductivity: Excellent thermal conductivity, especially in the hexagonal form, allowing efficient heat dissipation.

Electrical Insulation: Outstanding electrical insulation properties make it ideal for electrical applications requiring thermal management.

Chemical Stability: Highly resistant to chemical attacks, including strong acids and bases, ensuring durability in harsh environments.

Thermal Shock Resistance: Superior resistance to thermal shock, enabling it to withstand rapid temperature changes without cracking.

Mechanical Strength: Good mechanical strength at both room and elevated temperatures, although this can vary with the form of BN.

Lubricity: Self-lubricating property due to its layered structure, which reduces friction and wear in moving parts.

Non-Toxic: Safe to use in various settings, including medical and food processing industries, due to its non-toxic nature.

High-Temperature Performance: Maintains stability at extremely high temperatures, exceeding 1000°C in inert atmospheres, making it suitable for refractory applications.

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Specification of boron nitride ceramic Pyrolytic boron nitride crucible HBN ceramic crucible boron nitride tube

The boron nitride ceramic crucible and tube are made from high-purity pyrolytic boron nitride (PBN) or hot-pressed boron nitride (HBN). These materials are known for outstanding thermal security, chemical resistance, and electric insulation. The crucibles and tubes take care of severe temperature levels up to 1800 ° C in inert environments and 900 ° C in oxidizing environments. They resist thermal shock, making them optimal for rapid home heating and cooling processes.

The PBN crucible is created making use of chemical vapor deposition (CVD), making sure a thick structure without porosity. This prevents contamination throughout high-purity applications like semiconductor crystal development or metal refining. The HBN crucible is formed by hot pressing boron nitride powder, offering similar performance at a reduced cost. Both kinds are chemically inert, resisting acids, alkalis, and molten steels.

Boron nitride ceramic has low thermal development, minimizing fracturing risks under temperature level modifications. Its high thermal conductivity permits also warm distribution, critical for uniform melting or sintering. The material is non-wetting, so molten substances like aluminum or glass do not adhere to the surface. This extends the crucible’s life-span and streamlines cleaning.

The crucibles and tubes are electrically shielding, ideal for electronic applications needing marginal disturbance. They can be found in custom sizes and shapes, from little lab crucibles to large industrial tubes. Criterion measurements vary from 10 mm to 500 mm in size, with wall densities between 1 mm and 20 mm. Surface coatings can be readjusted for certain demands, from smooth to distinctive.

These products are used in semiconductor production, optical layer, and vacuum metallurgy. They act as containers for growing gallium arsenide crystals, vaporizing steels, or handling reactive chemicals. The boron nitride tube is additionally utilized in high-temperature heating systems as insulation or protective sleeves.

The product is machinable, allowing precise personalization. It is lighter than most ceramics, minimizing taking care of pressure. While weak compared to steels, proper use makes sure toughness. Boron nitride ceramic parts meet stringent sector requirements for purity and performance.

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Applications of boron nitride ceramic Pyrolytic boron nitride crucible HBN ceramic crucible boron nitride tube

Boron nitride porcelains are sophisticated products with special buildings. They supply high thermal conductivity, electrical insulation, and resistance to extreme temperature levels. These functions make them excellent for demanding industrial applications. Pyrolytic boron nitride (PBN) crucibles, hexagonal boron nitride (HBN) ceramic crucibles, and boron nitride tubes are widely made use of in modern fields.

Pyrolytic boron nitride crucibles are generated via chemical vapor deposition. This develops a pure, dense structure with excellent thermal stability. PBN crucibles take care of temperatures up to 2000 ° C in inert or vacuum cleaner atmospheres. They are crucial in semiconductor production for growing single crystals like gallium arsenide. Their non-reactive surface area avoids contamination during high-purity procedures such as molecular beam epitaxy.

HBN ceramic crucibles are made from hot-pressed hexagonal boron nitride powder. They combine machinability with high performance. HBN crucibles withstand thermal shock, making them appropriate for rapid temperature level changes. They are made use of in metallurgy for melting and spreading steels like aluminum, gold, and platinum. Their chemical inertness enables secure usage with destructive materials. HBN crucibles are common in research laboratories for chemical synthesis and high-temperature responses.

Boron nitride tubes work as insulators or protective elements in severe problems. They withstand temperatures over 1800 ° C while maintaining electrical insulation. BN tubes are used in thermocouples, heater elements, and semiconductor handling equipment. Their low thermal growth lowers cracking threats throughout heating cycles. In aerospace, BN tubes protect sensing units in high-heat environments. They additionally operate as crucible sustains or sleeves in crystal growth systems.

These boron nitride items share essential advantages. They resist oxidation, reduce wear, and extend tools lifespan. Their convenience covers industries like electronic devices, power, and research. Makers rely on boron nitride ceramics for precision, dependability, and efficiency in high-stress applications.

Company Introduction

Advanced Ceramics founded on October 17, 2014, is a high-tech enterprise committed to the research and development, production, processing, sales and technical services of ceramic relative materials and products.. Since its establishment in 2014, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Silicon carbide ceramic products, Boron Carbide Ceramic Products, Boron Nitride Ceramic Products, Silicon Carbide Ceramic Products, Silicon Nitride Ceramic Products, Zirconium Dioxide Ceramic Products, Quartz Products, etc. Please feel free to contact us.(nanotrun@yahoo.com)

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5 FAQs of boron nitride ceramic Pyrolytic boron nitride crucible HBN ceramic crucible boron nitride tube

Pyrolytic boron nitride (PBN) crucibles are high-purity ceramic containers made using a chemical vapor deposition process. This method creates a dense, layered structure ideal for extreme temperatures and corrosive environments. PBN crucibles work well in semiconductor production, crystal growth, and high-purity metal processing. Their non-reactive surface prevents contamination, making them suitable for sensitive applications.

PBN crucibles outperform many traditional materials like quartz or alumina. They handle temperatures up to 1800°C in inert atmospheres. Thermal shock resistance allows rapid heating or cooling without cracking. Boron nitride’s low wettability by molten metals reduces sticking, simplifying material removal. These crucibles also resist acids, alkalis, and molten salts better than most ceramics.

HBN (hexagonal boron nitride) ceramic crucibles share similarities with PBN but differ in manufacturing. HBN is hot-pressed from boron nitride powder, creating a machinable, isotropic structure. PBN’s layered design offers higher purity and better thermal conductivity. HBN suits applications requiring complex shapes, while PBN excels in high-purity processes like gallium arsenide crystal growth.

Boron nitride tubes are used for high-temperature insulation, thermocouple protection, and semiconductor processing. Their low thermal expansion prevents warping under heat. BN tubes insulate effectively while remaining electrically non-conductive. They work in vacuum or inert gas environments, often replacing graphite where reactivity matters. These tubes also shield sensitive components from metal vapors or plasma in industrial furnaces.

PBN crucibles last longer than alternatives in harsh conditions. Their chemical inertness reduces erosion from aggressive materials. Smooth surfaces minimize residue buildup, easing cleaning. Proper handling avoids mechanical damage—avoid impacts or sudden temperature shifts. Lifespan depends on usage intensity, but consistent performance under rated conditions ensures reliability. Regular inspection for cracks or wear helps maintain functionality.

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