Boron Nitride (BN) Crucible-Heeger Materials Inc View larger

Boron Nitride (BN) Crucible

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Boron nitride crucibles offer superb electrical insulation, thermal conductivity, thermal shock resistance, and chemical stability, along with excellent moisture resistance to molten metal, slag, and glass. Heeger Materials offers top-quality BN crucibles at competitive prices, with customized options for shapes and dimensions to meet specific requirements.

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Data sheet

MaterialsBN, ZSBN, BNBO
SizeCustomized

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Boron Nitride Crucibles are customized to customer requirements after hot-pressing and sintering boron nitride powder into blocks.

Boron nitride ceramics excel in high-temperature resistance, with a usage temperature of 2000 ℃ compared to alumina's 1700 ℃. They boast exceptional heat shock resistance, remaining crack-free after exposure to 1000 ℃ of furnace heat and repeated cooling cycles. 

Boron nitride is prone to moisture absorption and should not be placed in wet areas when the crucible is unused. Sealed, can not be washed, dirty, and wiped directly with sandpaper.

Boron Nitride (BN) CruciblesBoron Nitride (BN) CrucibleBoron Nitride (BN) Crucible with Lid Drawing

Boron Nitride Crucible Specifications

Purity>99.3%
Maximum use temperature2000 ℃ (Insert: Ar/N2)
1800 ℃ (Vacuum)
900 ℃ (Air)
SizeCapacityODIDHLid Height
2 mL16 mm12 mm20 mm3 mm
3 mL20 mm16 mm18 mm3 mm
5 mL24 mm20 mm18 mm3 mm
10 mL30 mm24 mm26 mm3 mm
50 mL50 mm44 mm37 mm3 mm
NoteDimensions can be customized upon request. The dimensions listed above are for reference only. Please contact us if you need tight tolerance.

Boron Nitride Crucible Available Materials Types

MaterialDescription
BN99Hot pressed at high temperature (1900℃).
Excellent corrosion resistance and thermal conductivity. Limited wear resistance
Self-bonded and high purity(>99%)
BNBOGeneral-purpose material
Bonded by boric oxide
BNCBCalcium borate bonded boron nitride
Enhanced moisture resistance
BN60BN 60%, SiO2 40%
BN40BN 40%, SiO2 60%
ZSBNBN-45%, Zr2O3 45%

Boron Nitride Crucible Using Tips

  • In order to ensure the service life of the crucible, it is recommended to use it under a protective gas environment (Ar/N2).
  • The maximum working temperature in the air is 900℃, the crucible will be oxidized when exceeding 900℃, which will affect its use.
  • It is recommended to store the crucible in a dry and sealed container.
  • Use fine sandpaper or cloth to remove any dirt or residue from the crucible, do not use water to clean the crucible.
  • Not to be used for the treatment of samples such as antimony oxide, chromium oxide, molybdenum trioxide, arsenic trioxide, hard titanium alloy, high-lead glass glaze, boron phosphates, potassium phosphate, chloride, and so on.

Boron Nitride Crucible Available Materials

  • Black metal: iron, copper, aluminum, nickel, magnesium, bismuth, zinc, etc., alloy FE-CO-NI-SI CO-ZR-NB.
  • No reaction between water and acid at room temperature.
  • Rare earth, boron acid, and ammonia.

Boron Nitride Crucible Unavailable Materials

  • Melantimony trioxide, chromium seven-oxide, molybdenum trioxide, arsenic trioxide, and titanium carbide.
  • Boron phosphate erodes boron nitride in 1400 degrees of nitrogen and will react with hot thick or molten alkali and hot chlorine gas.

Boron Nitride Crucible Applications

Boron nitride crucible can endure high temperatures in a high vacuum environment and has excellent corrosion and electrical resistance. Therefore, boron nitride ceramic product is an ideal choice in a wide range of industries, such as:

  • Electric insulators in vacuum system
  • Insulators for high-temperature furnace
  • Spacers for glass melting
  • Boron Nitride parts for ion injection equipment

Boron Nitride Crucible Packing

Boron Nitride (BN) Crucibles are carefully packaged in carton boxes with foam protection to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.

Boron Nitride (BN) Crucibles Packing

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