Introduction of Boron Nitride Ceramic Crucible
Boron Nitride (BN) crucibles are specialized laboratory equipment used in the field of materials science and metallurgy for the high temperature treatment of metals, ceramics and other materials. These crucibles utilize the unique properties of boron nitride compounds to ensure superior performance under extreme conditions.
Boron Nitride Ceramic Crucible
Specifications of Boron Nitride Ceramic Crucible
|
Specification |
Details |
|
Material Composition |
Hexagonal Boron Nitride (h-BN) |
|
Maximum Operating Temperature |
Up to 2100°C (3812°F) in non-oxidizing atmospheres; up to 900°C (1652°F) in air |
|
Thermal Conductivity |
High thermal conductivity, promoting uniform heat distribution |
|
Coefficient of Thermal Expansion |
Low, minimizing risk of thermal shock |
|
Chemical Resistance |
Resistant to most molten metals, salts, acids, and bases |
|
Electrical Resistivity |
High electrical resistivity at elevated temperatures |
|
Purity |
Typically >99% BN |
|
Surface Finish |
Smooth, sometimes with a polished finish |
|
Common Sizes |
Varies widely, from small laboratory sizes to larger industrial capacities |
|
Shape Availability |
Cylindrical, boat-shaped, rectangular, custom shapes available |
|
Mass Loss at High Temperatures |
Minimal mass loss under high-temperature conditions |
|
Porosity |
Generally low, contributing to chemical inertness |
|
Color |
White or light gray |
|
Special Features |
Some may come with lids or covers; options for coatings or reinforcements |
Features of Boron Nitride Ceramic Crucibles
Highly efficient thermal conductivity: The excellent thermal conductivity of boron nitride ensures uniform temperature distribution inside the crucible during the heating process, contributing to increased experimental or production efficiency.
Chemical Stability: Even at high temperatures, boron nitride is chemically inert to a wide range of substances such as molten metals and salts, effectively preventing corrosion or reactions.
Low Coefficient of Thermal Expansion: This feature makes boron nitride crucibles safer to use by reducing the risk of cracking or breakage due to thermal shock in the face of rapid temperature changes.
Electrical Insulation: Boron Nitride exhibits good electrical insulation properties at both ambient and very high temperatures, which is critical for applications where electrical interference needs to be avoided.
Lubricity: Boron nitride lubricates even at high temperatures, which can be an advantage for some manufacturing processes, reducing material sticking and simplifying operations.
Applications of Boron Nitride Ceramic Crucibles
Metallurgy and Metal Processing
Melting and casting: Boron nitride ceramic crucible is suitable for melting and casting metals and alloys at high temperatures, especially for reactive metals such as aluminum, titanium, magnesium and so on; it can provide good protection against corrosion.
Heat Treatment: Provide a non-reactive environment during heat treatment, such as annealing, quenching, tempering, etc., to ensure that material properties are not affected.
Ceramics and Glass Manufacturing
Material Synthesis: Provides an inert environment for the synthesis of advanced ceramics and glass, preventing contamination by foreign substances and ensuring product purity.
Sintering and Firing: For high-temperature sintering and firing processes of ceramic materials, avoiding contamination of materials by containers.
Chemical Industry
High-temperature reactions: For high-temperature chemical reactions involving corrosive or reactive substances, the high-temperature resistance and chemical stability of boron nitride ceramic crucibles make them ideal.
Laboratory Analysis: In analytical chemistry, are used to prepare samples for X-ray fluorescence (XRF) spectroscopy analysis, ensuring that the samples are protected from external contamination.
Semiconductor Industry
Wafer Fabrication: Used in single crystal growth and wafer handling, thanks to its ability to remain chemically inert at high temperatures, ensuring a smooth process.
Epitaxial growth: Used in epitaxial growth processes to create high-quality films on semiconductor substrates.
Research and Development
Experimental Work: Researchers exploring new materials or processes use boron nitride ceramic crucibles for experiments that require tightly controlled temperature environments.
New Material Development: Ensuring that the container does not interfere with the properties of the material being studied contributes to accurate research results.
Optoelectronics
Crystal Growth: Widely used in the crystal growth process for optoelectronic devices, which often requires high purity and high-temperature stability to ensure the quality and performance of the final product.
Company Profile
Company Profile
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, ceramic products, 3D printing powder, etc.
The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.
If you are looking for high-quality Boron Nitride Ceramic Crucibles, please feel free to contact us or click on the needed products to send an inquiry.
Payment Term
T/T, Western Union, Paypal, Credit Card etc.
Shipment Term
By air, by sea, by express, as customers request.
Packaging
FAQs of Boron Nitride Ceramic Crucibles
Q: What temperature ranges are boron nitride crucibles suitable for?
A: Boron nitride crucibles are able to withstand extremely high temperatures and can usually work stably in environments of 2000°C or more. However, the exact operating temperature depends on the actual application conditions and environmental factors. It can withstand even higher temperatures in a non-oxidizing atmosphere.
Q: Why choose boron nitride as crucible material instead of other materials?
A: Boron nitride is chosen as the ideal material because of its excellent chemical inertness, excellent thermal conductivity and low coefficient of thermal expansion. Not only does it remain stable at high temperatures, but it is also resistant to many corrosive and reactive substances, which makes it ideally suited for use in the demanding conditions of metallurgy, glassmaking, and other fields.
Q: Are boron nitride crucibles prone to breakage or damage?
A: Boron nitride crucibles are relatively rugged and durable, but like all ceramic materials, they may crack or break under extreme conditions such as sudden temperature changes. To extend service life, it is recommended to avoid sharp temperature fluctuations and to follow the manufacturer's instructions for operation and maintenance.
Q: How do I clean and maintain my boron nitride crucible?
A: Due to the non-wetting nature of the boron nitride surface, in most cases a gentle wipe with a soft cloth is all that is needed to remove residue. For more stubborn stains, special mild detergents can be used. It is important to avoid using tools or chemicals that may scratch or damage the crucible surface.
Q: How much does a boron nitride crucible cost?
A: The price of a boron nitride crucible varies depending on factors such as size, shape, wall thickness, and whether it is customized. High-quality boron nitride crucibles cost more because they offer superior performance and long life. Specific pricing information should be obtained by consulting directly with the supplier or manufacturer for a current quote. Additionally, considering their durability and high performance, investing in a quality product may be an affordable option in the long run.
