Discover Ultimate Heat Resistance With a Boron Nitride Crucible
Hexagonal boron nitride (h-BN) crucibles can withstand many chemicals, from acids to saltwater. Furthermore, these highly heat resistant and chemical-proof vessels don’t react with most substances either.
These characteristics make these ovens suitable for many different applications, from scientific experiments involving melting metals or ceramics to nuclear industries that handle radioactive materials.
High Thermal Conductivity
Boron nitride (BN), commonly referred to as hexagonal boron nitride, is an ideal self-lubricating ceramic material capable of withstanding high temperatures while still remaining lubricous in a vacuum environment. Therefore, these crucibles make an excellent choice for industrial processes involving melting alloys, ceramics and rare earth materials, electrolysis molten salt solution production or electron beam evaporation coating processes.
A BN crucible offers similar conductivity and thermal stability as graphite or cubic boron nitride crucibles, making it suitable for rapid temperature changes while its low coefficient of thermal expansion enhances longevity and durability. Furthermore, stress cracks may not form when handling this material due to its resistance against stresses.
Boron nitride stands out among metal products by possessing excellent chemical inertness, making it the go-to material when handling molten metals and harsh chemicals, such as molybdenum, tungsten and tantalum. This ensures the purity of materials being processed while resisting chemical reactions, oxidation and abrasion. Furthermore, this non-wetting material is resistant to most solvents making storage of volatile liquids or vapors which could otherwise spark reactions an easy task.
Low Coefficient of Thermal Expansion
Boron nitride differs from traditional metals used for crucibles in that it does not expand or contract when heated, enabling temperature changes without stressing out or damaging its vessel.
Hexagonal boron nitride (h-BN) can easily be machined into custom shapes, making it the ideal material for applications that demand high purity materials with superior chemical resistance and nonstick surfaces. Furthermore, its excellent chemical stability prevents interactions between corrosion-prone substances and contamination-free storage of molten materials.
H-BN boasts a low coefficient of thermal expansion and does not oxidize in air or nitrogen/argon gas up to 2800 degC temperatures, making it an excellent refractory material for melting and casting nonferrous metals, ferrous metals, ceramic materials, high temperature chemicals such as sintering or corrosion from acids/alkalis such as antimony trioxide, chromium oxide pentoxide, molybdenum trioxide arsenic trioxide or titanium carbide while reacting with high lead glass glaze or hot concentrated acidity levels.
Excellent Chemical Resistance
Boron nitride crucibles are indispensable in applications like semiconductor manufacturing and materials research, offering unparalleled chemical resistance allowing them to withstand environments which would degrade or react with traditional metal crucibles.
Boron nitride can withstand high temperatures without experiencing structural changes, making it an ideal material for use in high-demand industrial processes such as ceramic melting, metal smelting and crystal growth.
Boron nitride’s non-reactivity with aluminum ensures uniform and precise aluminum deposition.
Notably, boron nitride readily absorbs moisture; for this reason it should be stored away from humid environments and washed less often; instead it’s recommended that directly wiping your ceramic boron nitride crucible with sandpaper or alcohol is sufficient. Operating temperatures should not surpass 1000degC otherwise oxidization and peeling will occur between the contact surface between boron nitride and oxygen, and peel off will occur over time.
Excellent Electrical Insulation
Hexagonal boron nitride (BN) crucibles are ideal for high-temperature applications like materials synthesis and crystal growth as they don’t allow liquid metals to contaminate it, while at the same time decreasing thermal stress during melting processes. They offer microwave transparency that makes BN ideal for chemical reaction analysis as well as long-term use at 1800 degrees under vacuum or 2100 degrees with gas protection allowing users to achieve the highest working temperatures available.
Pyrolytic Boron Nitride (h-BN) is a synthetic material with multiple crystalline forms, such as hexagonal boron nitride (h-BN), rhombohedral boron Nitride (RBN), cubic Boron Nitride (CBN) and Wurtzite Boron Nitride (WBN). Due to its remarkable properties, h-BN has become an indispensable component in demanding industrial processes involving liquid metals and aggressive chemicals – for instance it can withstand hydrochloric and sulfuric acids without degrading or reacting, unlike traditional materials. Additionally hexagonal Boron Nitride has superior shock resistance properties which won’t crack under extreme cold or hot conditions.