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    PBN-PG-Heater-Element High purity and high-performance  pyrolytic boron nitride  are used as the substrate for the PBN heating element. Pyrolytic graphite (PG) is placed on the surface of PBN plates by the CVD method as a conductor and heater. As both PG and PBN are extremely pure and very stable in a vacuum or inert atmosphere, the PBN-PG heating element could be very durable and keep the chamber clean. It could be heated to 1600°C in a very short time without the emission of any gas component. These heating elements are ideal products for the semiconductor industry and applications that require high temperature, high vacuum, and high purity. PBN/PG Composite Heating Elements Specifications Size 1″-4″ Bulk Density 2.15-2.19 g/cm3 Max. Working Temperature 2400°C Volume Resistivity (Ω·cm) 3.11*1011 Flexural Strength (Mpa) 243.63 Thermal Conductivity (W/M·k) 43.7-60 Dielectric Strength (at room temperature) KV/mm 56

  How does a PBN heater work? What is the insulation material? What is a PBN heater? PBN material refers to  pyrolytic boron nitride  material obtained by CVD high-temperature deposition. BN refers to cubic boron nitride, which is obtained by hot pressing. The common thickness of PBN parts is less than or equal to 3mm due to the different acquisition processes. PBN heater   refers to a graphite heater formed by depositing a thin layer of graphite on a PBN substrate and forming a graphite band by machining (laser engraving). Finally, the graphite layer is covered with a layer of PBN cover layer (exposed electrode part) to become a complete graphite heater.   How many ways are there to process? Generally, there are two ways: 1 st : PBN sheet to make a good groove, and then coated with pyrolytic graphite, add a layer of PBN coating (outside the circuit engraved by the pbn disk, deposition of pyrolytic graphite on the circuit, and then a layer of pbn deposited on th...

Source: https://www.innovacera.com/news/pbn-pg-heater-performance-and-applications.html The PBN-PG ceramic heater combines three layers of ultra-high purity ceramics, PBN-PG-PBN to produce an advanced micro-ceramic heating element system. PBN as an insulating substrate and PG as the resistive element. Both our PBN heater (Pyrolytic Boron Nitride) and PG heater (Pyrolytic Graphite) are manufactured by high temperature CVD. These high performance elements exhibit outstanding thermal properties in a ceramic heater, including high thermal conductivity and anisotropy. Mechanically durable and thermally shock resistant, PBN-PG heaters are unaffected by vibration under most conditions and can be tailored to thermal gradients for specific requirements. With an ultra-fast response and low thermal mass, PBN-PG heaters demonstrate a power output of 35 watts/cm 2 (225 watts/in 2) and higher. PBN-PG Performance Advantages: Micro-ceramic heating element has an operating temperature of 1600°C. High m...