Conductive boron nitride crucibles has excellent high-temperature resistance and thermal cycling properties, and will not react with various metals and ceramic rare earths.
Even under rapid heating and cooling conditions, the crucible remains intact.
It can be used for alloy melting, rare earth and ceramic sintering, and electron beam evaporation coatings.
It is commonly used in thermal evaporation processes such as high-frequency induction heating, coatings, electron beam evaporation coatings, aluminum, and silicon plating.
Conductive boron nitride crucibles offer high purity, high finish, and excellent electron beam evaporation coating properties.
They increase evaporation rates, accelerate material changeovers, improve thermal stability, and reduce power requirements, ultimately increasing productivity and cost-effectiveness.
Advantages:
good film finish, high purity, less pollution, long service life.
1.Excellent resistance to high temperatures and heat cycling.
It has a low rate of thermal expansion and is resistant to wetting of most molten metals.
2.Heat-resistant up to 2000°C, boron nitride does not react with aluminum and is not volatile.
3.increase evaporation rate; Increasing the evaporation rate results in shorter cycle times and higher overall yields.
4.Rapid material change; Conductive boron nitride crucibles facilitate rapid material changes, minimize furnace chamber downtime, and improve process efficiency.
5.enhanced thermal stability; These crucibles have higher thermal stability, reducing heat transfer from the crucible itself, ensuring consistent and controllable evaporation
Main ingredients: BN+TiB2
Density 3.0g/cm3
Binding composition: B2O3
Color: Grey
Room temperature resistivity: 300-2000 Ω·cm
Operating temperature: below 1800℃
Thermal conductivity: > 40W/mk
Coefficient of thermal expansion: (4-6) x10-6K
Bending strength: > 130Mpa
Evaporation rate: 0.35-0.5g/min·cm2
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Frequently Asked Questions
Looking for a conductive boron nitride crucibles manufacturer? How do BN-TiB2 crucibles prevent aluminum cracking and wetting?
Molten aluminum aggressively corrodes oxide ceramics and leads to catastrophic thermal shock cracking in graphite. INNOVACERA manufactures hot-pressed BN-TiB₂ conductive composite crucibles that are inert and non-wetting to molten aluminum, silicon, and rare earths. Engineered to withstand operating temperatures up to 1800°C and severe thermal cycling, they prevent crucible fracture, eliminate metal melt contamination, and significantly extend crucible campaign life in PVD coaters.
Need custom conductive BN crucibles for electron beam or induction evaporation? How do they improve deposition rates?
INNOVACERA supplies custom-machined conductive boron nitride crucibles and liners tailored to your exact vacuum chamber hearth geometries. With controlled electrical resistivity (300–2000 Ω·cm) and high thermal conductivity (>40 W/m·K), our crucibles enable fast, uniform direct electrical or induction heating, achieving stable evaporation rates of 0.35–0.5 g/min ·cm² while slashing chamber downtime during material changeovers.
