Bridgman Crystal Growth Furnace | Single Crystal Growth System

Bridgman Crystal Growth Furnace is a precision thermal system designed for the controlled growth of bulk single crystals using the Bridgman–Stockbarger method. This well-established technique is widely used for producing semiconductor crystals, scintillator materials, infrared optical crystals, halides, chalcogenides, and oxide crystals, where precise temperature gradients and directional solidification are critical to crystal quality.

The Bridgman furnace enables crystal growth by slowly translating a crucible or sealed ampoule through a controlled axial temperature gradient, allowing directional solidification from the melt. Accurate control of the temperature profile, translation speed, and thermal stability supports the growth of large, low-defect single crystals with excellent compositional uniformity.

Our Bridgman crystal growth furnaces are engineered for high-temperature stability, uniform thermal fields, and flexible system configuration. Both vertical and horizontal designs are available, with customizable hot-zone length, temperature gradient, and sample capacity. The system is fully compatible with sealed quartz ampoules, crucibles, vacuum environments, and controlled atmospheres, making it suitable for a wide range of crystal materials.

Advanced control electronics provide programmable multi-zone heating, precise temperature ramping, and synchronized translation control, ensuring repeatable and reliable growth conditions. The system supports both academic research and pilot-scale crystal production, and can be customized to meet specific material systems, growth temperatures, and crystal dimensions.

Key Features & Capabilities

• Growth method: Bridgman / Bridgman–Stockbarger
• Configuration: Vertical or horizontal furnace design
• Maximum temperature: Up to 2000 °C
• Multi-zone heating: Independent zone control for stable axial gradients
• Precise temperature gradient control
• Programmable translation and temperature profiles
• Compatible sample formats: Sealed quartz ampoules and crucibles
• Atmosphere options: Vacuum, inert gas, or controlled atmosphere
• Customizable hot-zone length and sample capacity

Typical Applications

• Semiconductor single crystal growth
• Scintillator crystal growth (BGO, CsI, NaI, etc.)
• Infrared optical and chalcogenide crystals
• Halide and fluoride crystal growth
• Research-scale and pilot-scale crystal production
• Materials science and solidification studies

Custom furnace dimensions, temperature ranges, control architectures, and sample capacities are available upon request.