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PBN Crucibles for Precision Application

Pyrolytic Boron Nitride Crucible can withstand high temperatures in a high vacuum environment. It has excellent thermal conductivity, corrosion resistance, and electrical resistance.

BN0997 Boron Nitride Blank, BN Blank

Catalog No. BN0997
Molecular Formula BN
Molecular Weight 24.82
Appearance White
Melting Point 2973 °C
Density 2.1 g/cm3 (h-BN); 3.45 g/cm3 (c-BN)
Solubility in Water Insoluble
Refractive Index 1.8 (h-BN); 2.1 (c-BN)
Electrical Resistivity 13 to 15 10x Ω-m

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BN0997 Boron Nitride Blank, BN Blank

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Boron Nitride Blank Description

Boron nitride blank is made of boron nitride ceramic -- a chemical compound with equal numbers of boron and nitrogen atoms. The hexagonal form (HBN) corresponding to graphite is the softest and most stable form among BN polymorphs, and is therefore used as a lubricant and an additive to cosmetic products. The cubic (CBN) variety analogous to diamond has a high hardness which is inferior only to diamond. The rare wurtzite BN (WBN) modification is similar to lonsdaleite, and it may even be harder than CBN.

Boron Nitride Blank Available Materials

Material	Description	Availability
BN99	Hot pressed at high temperature (1900℃). 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

Specifications of BN99 and ZSBN for your reference!

Boron Nitride Blank 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 Blank Applications

Boron nitride (BN) blanks are usually the raw material to make the other machined parts. It could also directly be applied directly as insulators in some electronic or vacuum equipment with simple machining. Boron Nitride Blank ApplicationsBoron Nitride Blanks Applications

High purity BN could withstand higher temperatures in a vacuum than lower purity enhanced BN products. Although we usually claim the maximum working temperature as 2500C, there's a record to use our material at 3000+ C. Due to the low wettability with metals, boron nitride is an ideal material for metal melting works, especially for the high-purity material metal in a vacuum.

Boron nitride ceramic from Advanced Ceramic Materials (ACM) can withstand high temperature 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 wide range of industries, such as:
-Crucibles for crystal growth
-Evaporator Boats
-Break rings for horizontal casting machine
-Components for PVD, MOCVD, MBE system

Packing Service

ACM’s Boron Nitride Blank is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.