PBN0953 PBN Heater, Pyrolytic Boron Nitride Heaters

Catalog No.	PBN0953
Size	Diameter: 0.5"~4"
Material	PBN, Pyrolytic Boron Nitride and PG Pyrolytic Graphite
Purity	99.99%
Color	Black and White

PBN Heater Description

PBN PG Composite Heating Elements High purity and high-performance pyrolytic boron nitride ceramics are used as the substrate for the PBN heaters. Pyrolytic graphite (PG) is placed on the surface of PBN plates by the CVD method as conductor and heater. Depending on the different requirements of applications, the PG heating element could be covered by PBN again or just stay open.

As both PG and PBN are extremely pure (99.99% or even higher) and very stable in vaccum or inert atmosphere, the PBN-PG heating element could be very durable and keep the chamber clean. It could be heated to ultra high 16oo℃ in very short time without emmision of any gas component. These heating elements are ideal products for semiconductor industry and applications that requires high temperature, high vaccumn and high purity.

PBN Heating Elements

Diameter	0.5”~4”
Power	150~3000W
Max. Working Temp.	2400 ℃

PBN Heater Specification

PBN Material properties

Item		value	Unit
lattice constant		a:2.504×10^-10 c:6.692×10^-10	μ m
density		2.0-2.19	g/cm³
resistivity		3.11×10¹¹	Ω·cm
tensile strength（ab）		153.86	N/mm²
bend strength	c	243.63	N/mm²
bend strength	ab	197.76	N/mm²
elastic modulus		235690	N/mm²
thermal conductivity		“a” direction “c” direction
	(200℃)	60 2.60	W/m·k
	(900℃)	43.70 2.80	W/m·k
dielectric strength（at room temperature）		56	KV/mm

PBN Heater Advantages

PBN composite heating element has an operating temperature to = 1600°C.
High mechanical durability and dimensional stability.
Dimensionally compact. PBN layer provides electrical insulation.
Thermal gradients can be tailored to meet specific requirements.
Eliminate outgassing and contaminations.
High thermal shock resistance.
Chemically inert to almost all metals, liquids and gas.
Large variety of PG heater and PGN heater shapes available.

PBN Heater Applications

Boron Nitride ceramic from China Special Ceramic Parts, Inc. can withstand high temperature in 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
– Break rings for horizontal casting machine
– Insulators for high temperature furnace
– Electric insulators in vacuum system
– Feed through for high voltage equipment

Packing Service

ACM’s high purity ceramic PBN heaters are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.

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