Product Introduction Of Sapphire Tubes
The Kyropoulos (KY) method sapphire tube is a single-crystal
sapphire tube grown using the Kyropoulos technique. This method
yields sapphire with excellent crystal integrity, controllable
dimensions, and stable properties. KY-grown sapphire tubes are
widely used in high-temperature, vacuum, corrosive, and optical
environments. The method is ideal for producing large, high-purity
sapphire crystals for commercial applications.
Working Principle Of Sapphire Tubes
The Kyropoulos method involves melting high-purity Al₂O₃ in a
platinum crucible and slowly bringing a seed crystal into contact
with the melt. Under carefully controlled temperature gradients and
low pulling speeds, the crystal gradually grows while partially
immersed in the melt. Unlike the Czochralski method, the KY method
produces crystals with lower internal stress and fewer defects,
enabling the growth of large, uniform sapphire boules suitable for
tubing.
Applications Of Sapphire Tubes
Heating protection sleeves in high-temperature environments
(furnace tubes, heating element covers)
Structural tubes in chemical or plasma-resistant environments
Enclosures for electronic or sensing components
Optical interfaces and protective sleeves in medical devices
Military & Aerospace: Windows and monitoring tubes for missiles or
spacecraft.
Q&A Of Sapphire Tubes
Q1: What is the difference between KY sapphire tubes and EFG-grown
tubes?
Q1: KY-grown sapphire offers superior uniformity, lower defect
density, thicker walls, and larger diameters, making it suitable
for high-performance applications. EFG is more suited for
continuous production of smaller tubes.
Q2: What is the temperature resistance of sapphire tubes?
A2: Sapphire can withstand up to 2000°C in air and around 1900°C in
vacuum or inert atmospheres. With a melting point of approximately
2050°C, it is ideal for high-temperature furnace tubes and thermal
shielding applications.
Q3: Is it possible to customize sapphire tubes?
A3: Yes. Please provide specifications such as outer diameter,
inner diameter, length, and tolerance—custom quotes will be
provided accordingly.
Q4: Are sapphire tubes chemically resistant?
A4: Yes. Sapphire has excellent chemical stability and can
withstand most acids (except hydrofluoric acid and hot phosphoric
acid) and organic solvents, making it ideal for corrosive
environments.
Related products
99.995% Al2O3 Transparent Sapphire Tube With High Tolerance
Translucency
Sealed Sapphire Tube Aluminum Oxide Polished Single Crystal
Corrosion-Resistant
