Product Code :
The PBN/PG ceramic heater combines three layers of ultra-high purity ceramics, PBN-PG-PBN. the PBN acts as the insulating substrate and the PG acts as the resistive element. Our PBN heaters (pyrolytic boron nitride) and PG heaters (pyrolytic graphite) are manufactured by high-temperature CVD.
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The PBN/PG ceramic heater combines three layers of ultra-high purity ceramics, PBN-PG-PBN. the PBN acts as the insulating substrate and the PG acts as the resistive element. Our PBN heaters (pyrolytic boron nitride) and PG heaters (pyrolytic graphite) are manufactured by high-temperature CVD. These high-performance elements exhibit excellent thermal properties in ceramic heaters, including high thermal conductivity and anisotropy. High purity and high-performance pyrolytic boron nitride are used as the substrate for the PBN heating elements. Pyrolytic graphite (PG) is placed on the surface of PBN components by the CVD method as conductor and heater. Depending on different requirements of usage, the PG heating element could be covered by another layer of PBN or just stay open. As both PG and PBN are extremely pure (99.99% or even higher) and very stable in a vacuum or inert atmosphere, the PBN-PG heating elements could be very durable. It could be heated to 1600℃ in a very short time without emission of any gas component, the chamber is clean when using PBN/PG heaters. These heating elements are ideal products for the semiconductor industry and applications that require high temperature, high vacuum, and high purity.
h-BN; Elbor; hexagonal boron nitride; Boron mononitride; Nitridoborane; Nitriloborane
PBN/PG Heater Specifications
Diameter: 0.4- 5 inch
Per your request or drawing
We can customized as required
|lattice constant||a:2.504×10-10 c:6.692×10-10||μ m|
|Thermo conductivity||"a" direction "c" direction|
|dielectric strength（at room temperature）||56||KV/mm|
PBN/PG Heater Advantages
-PBN composite heating element has an operating temperature up to 1600°C.
-High mechanical durability and dimensional stability.
-High thermal shock resistance.
-PBN layer provides electrical insulation.
-Eliminate outgassing and contaminations.
-Thermal gradients can be tailored.
-Chemically inert to almost all metals, liquids, and gas.
-Large variety of PG heater and PGN heater shapes are available.
High purity, 99.999%
Fast temperature increase rate, 200℃ / min
Corrosion resistance, no powder and no gas release at high temperature
The small temperature difference in the temperature area and long service life Customized production design can be realized
Pyrolytic Boron Nitride (PBN) Applications
PBN ceramic materials have high purity, chemical inertness and excellent thermal conductivity, making PBN crucible an ideal container for elemental purification, crystal growth and semiconductor manufacturing, especially for the preparation of next-generation compound semiconductors such as GaAs, InP, etc.
At the same time, PBN products are also widely used in aviation, aerospace, electronics, chemical, special metallurgy, medical and other fields.
PBN/PG Heater Packing
Sealed bags in carton boxes. Special package is available on request.
As a ceramic material, boron nitride is quite fragile in a lot of cases. PBN/PG crucibles are usually held in plastic bags by vacuum, and protected with heavy foam.
Our PBN/PG Heaterare carefully handled to prevent damage during storage and transportation and to preserve the quality of our products in their original condition.
Tungsten heavy alloys are the tungsten alloys consisting of W-Ni-Fe or W-Ni-Cu. The tungsten content varies from 90% to 98%. Nickel, iron and/or copper serve as a metal binder matrix, which makes the tungsten alloys ductile and easy to machine.