TiB₂-BN-Based Evaporation Boats for Precision Thin Film Deposition

Evaporation boats made from TiB₂-BN composites exhibit electrical conductivity due to the integration of high-temperature boron nitride. These boat-shaped crucibles are key components for vaporizing metals or other materials from the molten state through precise resistive heating at high temperatures. They are widely used in physical vapor deposition (PVD) processes. The high density and low porosity of the material contribute to excellent thermal conductivity, thermal shock resistance, and corrosion resistance.

Heating Method and Operating Temperature

The evaporation boat is connected to a power source at both ends and is resistively heated to a temperature range of 1600–1700°C. This enables the metal particles or wires loaded inside to vaporize from their molten state, supporting high-precision thin film deposition applications.

Key Performance Advantages of Conductive Boron Nitride Evaporation Boats:

• Precise Heating and Resistive Control
  The TiB₂-BN composite offers controllable resistivity, enabling accurate electrical heating with uniform thermal power distribution. This ensures stable and precise evaporation rates.
• Good Wettability and Corrosion Resistance
  The material demonstrates excellent wetting behavior and corrosion resistance, effectively minimizing spattering during heating and reducing energy consumption.
• Low Porosity
  A low-porosity structure helps reduce gas release and contamination risks under high-temperature vacuum conditions, while enhancing corrosion resistance and thermal stability.
• Dense Microstructure
  High material density ensures rapid and uniform heat transfer during the initial heating and holding phases, improving temperature control accuracy.
• High Thermal Conductivity
  Well-suited for rapid heating and cooling cycles, ensuring uniform temperature distribution across the evaporation boat.
• Excellent Thermal Shock Resistance
  Capable of withstanding frequent thermal cycling without cracking, making it suitable for demanding high-temperature environments.
• High-Temperature Stability
  The stable structure of the material at elevated temperatures contributes to a longer service life.
• Corrosion Resistance
  Dense structure and low porosity prevent the penetration of gases and impurities into the material at high temperatures.
• Uniform Wetting Behavior
  Minimizes splattering during the heating process, improving process stability and production efficiency.
• Ease of Operation
  The material and design allow for easy handling and integration into automated processing systems.

Property of Evaporation Boats

BN Evaporation Boat Supplier from China

Available in a wide range of sizes, we offer not only standard BN crucibles but also custom-made components to meet your specific requirements. If you're interested in our evaporation boats or crucibles, please feel free to send us your drawings — we will get back to you with a quote shortly.

As a professional supplier of advanced ceramics, we also provide boron nitride nozzles, boron nitride machining services, and machinable boron nitride ceramic parts. Contact us today to learn more about our comprehensive BN solutions.