Описание
Our EFG-grown sapphire tubes are manufactured using the Edge-defined Film-fed Growth (EFG) method, known for producing high-quality single-crystal sapphire. These tubes offer exceptional mechanical strength, optical clarity, and thermal stability. EFG-grown sapphire tubes are ideal for a wide range of industries, including semiconductor processing, laser systems, high-temperature applications, and scientific instrumentation.
These tubes are available in various customizable sizes and wall thicknesses, offering versatility for numerous demanding applications where strength, precision, and high-performance material properties are critical.
Product Features & Specifications:
| Недвижимость | Технические характеристики |
|---|---|
| Материал | >99.99% pure α-Al₂O₃ (single crystal) |
| Метод роста | Edge-defined Film-fed Growth (EFG) |
| Ориентация | C-Plane <0001> |
| Твердость (Мооса) | 9 (second only to diamond) |
| Теплопроводность | 30 W/m·K at 25°C (5× higher than quartz) |
| Устойчивость к тепловому удару | Withstands ΔT >500°C (water quench test per ASTM C1525) |
| Прочность на сжатие | >2 GPa |
| Flexural Strength | 600-750 MPa (3-point bend, ASTM C1161) |
| Young’s Modulus | 390 GPa |
| Transmission | >80% light transmittance (400-700nm) |
| Двулучепреломление | <5 nm/cm (compensated for laser applications) |
| Dimensional Tolerance | ID/OD ±0.02mm |
| Size Range | Customizable from 5mm to 150mm (diameter); Length up to 500mm |
| Отделка поверхности | Polished или Unpolished (customizable) |
Key Benefits of EFG-Grown Sapphire Tubes:
Unmatched Durability:
With a Mohs hardness of 9, these tubes are highly resistant to wear, scratches, and mechanical damage, making them ideal for high-stress and abrasive environments.Superior Thermal & Chemical Resistance:
Sapphire tubes are known for their ability to withstand extreme temperatures ranging from -200°C to 1,800°C and for their exceptional thermal shock resistance. They are also highly resistant to strong acids, alkalis, and plasma corrosion, ensuring long-lasting performance even in aggressive conditions.High Optical Clarity:
Our sapphire tubes maintain over 80% light transmittance in the visible spectrum (400-700nm), making them ideal for high-precision optical applications. The low birefringence (<5 nm/cm) ensures minimal optical distortion, especially useful for laser systems.Customizable Sizes & Precision:
Available in a wide range of diameters and lengths (up to 500mm), with dimensional tolerances of ±0.02mm, our sapphire tubes can be tailored to your specific needs, making them suitable for a variety of industrial and scientific applications.Excellent Mechanical Properties:
These tubes offer high compressive strength (>2 GPa) and flexural strength (600-750 MPa), ensuring they can handle mechanical stress and pressure while maintaining structural integrity.Efficient Production Process:
The EFG method allows for the production of longer tubes with consistent dimensions, reducing production time and ensuring reliability for high-volume orders.
Applications of EFG-Grown Sapphire Tubes:
Производство полупроводников:
Plasma Etching Chambers: High resistance to plasma corrosion extends equipment life.
Wafer Processing Observation Windows: Sapphire’s high transparency and thermal stability make it ideal for monitoring wafer processes at elevated temperatures.
Laser Systems:
Laser Gain Media Tubes: Sapphire tubes offer low optical loss for excimer, CO₂, and fiber lasers.
Beam Delivery Components: Protects laser nozzles from high-energy densities, ensuring precise performance.
High-Temperature Industrial Applications:
Thermal Process Tubes: Used in crystal growth furnaces, these tubes can withstand temperatures up to 2,100°C.
Molten Metal Handling: Ideal as thermocouple protection tubes in aluminum and superalloy processing.
Combustion Analysis: Sapphire tubes offer thermal shock resistance for flame tubes in turbine engine test stands.
Scientific Instrumentation:
Synchrotron Beamlines: Sapphire tubes are used in X-ray windows and monochromators, providing high transparency and resistance to radiation damage.
Cryogenic Systems: Effective for low-temperature research applications (up to 4K).
High-Pressure Cells: Used in extreme pressure research, including diamond anvil cell components for pressures exceeding 100 GPa.
Медицинские технологии:
Surgical Laser Delivery Systems: Provides excellent resistance to sterilization and wear, making them ideal for endoscopic laser applications.
MRI-Compatible Sensor Housings: Offers transparency and mechanical strength for MRI equipment.
Dental Handpieces: Sapphire tubes are used in dental tools for their resilience and sterilization compatibility.
FAQ:
Q1: What is the difference between EFG-grown and KY-grown sapphire tubes?
A: EFG-grown sapphire tubes are produced using a different growth method that allows for longer and more uniform tubes, making them more cost-effective for larger sizes. They are ideal for applications where устойчивость к тепловому удару, механическая прочность, и chemical inertness are crucial. While both types offer excellent properties, KY-grown sapphire tubes tend to have higher optical quality and are preferred for applications where ultra-high precision is needed.
Q2: What are the packaging standards for EFG-grown sapphire tubes?
A: We provide aerospace-grade packaging:
Primary Packaging: Class 100 cleanroom vacuum-sealed bags to preserve material integrity.
Secondary Packaging: Custom foam-insulated cases to protect the tubes from mechanical damage during transport.
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