Temperature resistance
Challenge
Technical ceramics are frequently used because they can withstand significantly higher temperatures than common metals or polymers. While materials such as alumina (Al₂O₃), zirconia (ZrO₂), or aluminum nitride (AlN) offer good high-temperature properties, they reach their limits in certain process environments. This is particularly true when temperatures are consistently very high or when working in inert gas and vacuum processes. The challenge lies in selecting a material that reliably maintains its structure and function even at extreme temperatures.
Consequence
If a material’s temperature resistance is insufficient, this can have significant effects on its properties and, consequently, on processes and equipment. Typical consequences include material degradation, loss of electrical insulation properties, reduced component service life, and more frequent maintenance and replacement.
THE HENZE SOLUTION
Selecting a material with sufficient temperature resistance is therefore a critical factor for reliable and cost-effective processes. Boron nitride offers exceptional temperature resistance and has proven itself in numerous high-temperature applications. Depending on the atmosphere, Henze BNP hexagonal boron nitride retains its properties even at temperatures up to 2,200 °C.
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Frequently Asked Questions
What role does temperature resistance play in material selection?
The selection of the right technical ceramic usually begins with a central question: Will the material and its properties withstand the demanding process conditions in the long term?? In many industries, conventional materials quickly reach their performance limits at high temperatures. Boron nitride, on the other hand, is an industrial ceramic that is naturally resistant to high temperatures and is a true all-rounder that reliably retains its unique properties – such as separating effect, insulation and thermal conductivity – even under extreme thermal loads.
How do Henze BNP boron nitride products withstand extreme temperatures?
Boron nitride is extremely temperature-stable. In an inert (oxygen-free) atmosphere, for example, the material remains stable up to 2,000 °C. Our sintered components (HeBoSint®) can withstand extremely high thermal loads – we manufacture our sintered bodies in our own hot presses even at maximum temperatures of up to 2,200 °C. But it’s not just solid components that benefit: our HeBoFill® powders and HeBoLub® lubricant additives also retain their excellent lubricating and separating effect even at the highest temperatures..
In which industrial applications is this extreme temperature resistance essential?
The thermal stability of our products is in demand in countless high-temperature applications. In high-temperature furnace construction, they guarantee safe process control as heat-resistant insulation sleeves and heater supports. In laser processing, an extremely temperature-stable boron nitride layer protects components from hot metal splashes and oxidation.. A particularly impressive example of the resistance of boron nitride is the aerospace industry: in plasma drives for satellites, the material proves its ability not only to dissipate extreme heat effectively, but also to withstand the extreme low temperatures in space without any problems.