New Hot Pressed Boron Nitride (BN) Ring-heegermaterials View larger

Hot Pressed Boron Nitride (BN) Ring

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Heeger Materials provides our customers with high-quality Hot Pressed Boron Nitride (H-BN ceramic). BN Ring is available from high-temperature-(1900C)-formed 99% pure composite boron nitride materials.

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Boron nitride ring has been widely used in the horizontal continuous casting separation ring of molten steel. Boron Nitride(BN), Hexagonal boron nitride (H-BN), and hot-pressed boron nitride are good self-lubricated ceramic that can withstand high temperature and maintain their lubricating capability in a high vacuum environment. HM Boron Nitride Rings are made from hot-pressed boron nitride blank. Hexagonal boron nitride (H-BN) behaves similarly to graphite mechanically but offers excellent electrical resistance.

Boron Nitride Ring Advantages

  • Low wettability to molten metal
  • Relatively high thermal conductivity with low thermal expansion
  • Relatively high thermal shock resistance
  • Extremely high working temperature with proper inert gas protection (>3000C has been recorded)

Boron Nitride Ring Applications

Boron Nitride ceramics from Heeger Materials can bear high temperatures in a high vacuum environment, plus it has excellent corrosion resistance and electrical resistance. Thus, Boron Nitride ceramic product is an ideal choice in a variety of industries, such as:

  • Linked undergraduate level
  • Lead plate with side sealing plate
  • Amorphous, nanocrystalline with see-through screen
  • Special metal cathode and draft tube

Types of hexagonal boron nitride materials

  • Pyrolytic boron nitride PBN: 99.99% boron nitride
  • High purity boron nitride HPBN: >98.5% boron nitride + boron oxide
  • Calcium Borate Boron Nitride CABN: >97.5% Boron Nitride + Calcium Borate
  • Aluminum Nitride Boron Nitride ALBN: Boron Nitride + Aluminum Nitride + Boron Aluminum Oxide
  • Zirconia Boron Nitride ZRBN: Boron Nitride + Zirconia + Boron Oxide
  • Zirconium Aluminum Boron Nitride ZABN: Boron Nitride + Zirconia + Aluminum Nitride + Aluminum Boron Oxide
  • Silicon carbide boron nitride SCBN: boron nitride + silicon carbide + boron silicon oxide

Available materials of Hot Pressed Boron Nitride Ring

Material

Description

Availability

BN99

Hot pressed at high temperature (1900C).

Excellent corrosion resistance and thermal conductivity. Limited wear resistance

Self-bonded and high purity (>99%)

Machinable Blanks

Finished Parts

BNBO

General-purpose material

Bonded by boric oxide

Finished Parts

BNCB

Calcium borate bonded boron nitride

Enhanced moisture resistance

Finished Parts

BN60

BN 60%, SiO2 40%

Finished Parts

BN40

BN 40%, SiO2 60%

Finished Parts

ZSBN

BN-45%, Zr2O3 45%

Finished Parts

Targeted market

  • High-temperature furnace manufacturing
  • Ceramic manufacturing semiconductor
  • PVD coating
  • Microwave etc.

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